This document reviews the effects of various parameters on friction stir welding. It summarizes research that has studied how welding parameters like rotational speed, travel speed, tool geometry, and plunge depth impact the quality of friction stir welds. The document also reviews studies on double-sided friction stir welding and how parameters like shoulder diameter and plunge depth influence mechanical properties of the welded joints. Overall, the review examines how process parameters can be optimized in friction stir welding to produce welds without defects and with improved mechanical properties.
Effects and defects of the polypropylene plate for different parameters in fr...eSAT Publishing House
1. The document analyzes the effects of different parameters on friction stir welding of polypropylene plates, including tool pin profile, rotational speed, and welding speed.
2. Microstructural images and hardness tests were used to evaluate the quality of the welds under different conditions.
3. The results showed that a threaded pin profile with rotational speed of 2250 rpm and welding speed of 40-50 mm/min produced welds with the fewest defects in the polypropylene material.
This document summarizes a study on the effects of friction stir processing (FSP) on the microstructure and hardness of AA6061 aluminum sheet metal. The following key points are made:
1) FSP was used to refine the grain structure of AA6061, decreasing the average grain size by 70% compared to the untreated metal.
2) Hardness testing found that hardness increased with additional FSP passes, with hardness up to 1.75 times higher than untreated areas after 4 passes.
3) Microstructural analysis found that FSP effectively refined the grain structure through severe plastic deformation during processing, leading to improved mechanical properties like increased hardness.
Effect of welding parameters and tool shape on properties of friction stir we...IJERA Editor
Friction stir welding (FSW) is a widely used solid state joining process for soft materials such as aluminium alloys because it avoids many of the common problems of fusion welding. It has many benefits when applied to welding of aluminum alloys. FSW process parameters such as welding speed, rotational speed and tool geometry play vital roles in the weld quality. The aim of this research is to investigate the effects of different welding speeds, rotational speeds and tool pin profile on the weld quality of a AA6061 aluminum alloy. A friction stir welding tool consists of rotating shoulder and pin that heats the working piece by friction and moves a softened alloy around it to form a joint. In this research work the effect of the tool shape and welding parameters (rotating speed and welding speed) on the mechanical properties of an aluminium plates will be investigated experimentally. The induced heat during the welding process played the main role in the mechanical and appearance of the joints, which is related to the welding parameters.
Optimization of friction stir welding process parameter using taguchi method ...eSAT Journals
Abstract Friction stir welding (FSW) is relatively new solid state joining process. This joining technique is energy efficient, environment friendly and versatile. Welding is a multiinput-output process in which quality of welded joint is depends upon a input parameter. Therefore optimization of input process parameter is required to achieve good quality of welding. There are so many methods of optimization in which Taguchi method and Response surface methodology are selected for optimization of process parameter. In this review the effect of process parameter on welded joint studied and optimizes the parameter by using Taguchi method and Response surface methodology. The study of Friction stir welding of Aluminium alloy and High density polyethylene sheets shows the improvement in welded joint quality by optimization of process parameter. The main process parameters which affect the strength of welded joint is tool rotational speed, welding speed, axial force and tool pin profile. Keywords: Friction stir welding (FSW), Optimization, Taguchi Method Response surface Methodology Prediction models
FSW PROCESS DISSIMILAR (Al) AT 3G POSITIONMin Dzulkiflee
This document summarizes a research project on friction stir welding (FSW) of dissimilar aluminum alloys. The objectives were to design an FSW weld for joining different aluminum series in a 3G position, evaluate the best welding parameters such as rotational and transverse speed, and analyze tensile strength properties. FSW was performed using different transverse speeds and a fixed rotational speed. Tensile testing showed the highest strength was achieved with a transverse speed of 86mm/min, meeting the project's objectives.
Friction Stir Welding of Magnesium Alloys - A Reviewmsejjournal
The selection of proper material for each application is a critical part in every manufacturing industry.
In the field of aerospace and automobile the major requirement is light weight yet strong material which
can possess every aspect of design parameters. Magnesium alloy one of the major raw material used in
these industries due to its light weight, good thermal conductivity etc. Also Friction stir welding is the
joining process that is being used in these industries as it is a solid state joining process. This paper
gives a detailed review about Friction Stir welding of Mg alloys. The review period is considered from
2009 to 2015.A detailed review about Friction stir welding of Mg alloys has not been done before in this
manner. This review work may be a ready reference for subsequent researchers.
Finite element modeling and bending stress analysis of non standard spur geareSAT Journals
Abstract Gears are toothed wheels, transmitting power and motion from one shaft to another by means of successive engagement of teeth. Having a higher degree of reliability, compactness, high velocity ratio and finally able to transmit motion at a very low velocity, gears are gaining importance as the most efficient means for transmitting power. A gearing system is susceptible to problems such as interference, backlash and undercut. The contact portions of tooth profiles that are not conjugate is called interference. Furthermore due to interference and in the absence of undercut, the involute tip or face of the driven gear tends to dig out the non-involute flank of the driver. The response of a spur gear and its wear is an engineering problem that has not been completely overcome yet. With the perspective of overcoming such defects and for increase the efficiency of gearing system, the use of a non-standard spur gear i.e., an asymmetric spur gear having different pressure angles for drive and coast side of the tooth comes into picture. This paper emphasis on the generation of an asymmetric spur gear tooth using modeling software and bending stress at the root of Asymmetric spur gear tooth is estimated by finite element analysis using ANSYS software and results were compared with the standard spur gear tooth. Keywords: Asymmetric spur gear, Bending stress, Finite element method, Pressure angle
Optimization of Process Parameters of Friction Stir Welding for Similar He-30...IRJET Journal
This document discusses optimization of process parameters for friction stir welding of similar HE-30 aluminium alloy. It begins with an abstract that describes the friction stir welding process and the objectives of using Taguchi methods to optimize welding parameters to achieve high tensile strength. It then provides background on friction stir welding, describing how it is a solid-state welding process that uses a rotating tool to plasticize materials without melting. The document discusses how process parameters like rotational speed, travel speed, and tool geometry can affect joint quality and properties. It aims to use an experimental design and analysis approach to determine the optimum welding conditions for high tensile strength when joining HE-30 aluminium alloy.
Effects and defects of the polypropylene plate for different parameters in fr...eSAT Publishing House
1. The document analyzes the effects of different parameters on friction stir welding of polypropylene plates, including tool pin profile, rotational speed, and welding speed.
2. Microstructural images and hardness tests were used to evaluate the quality of the welds under different conditions.
3. The results showed that a threaded pin profile with rotational speed of 2250 rpm and welding speed of 40-50 mm/min produced welds with the fewest defects in the polypropylene material.
This document summarizes a study on the effects of friction stir processing (FSP) on the microstructure and hardness of AA6061 aluminum sheet metal. The following key points are made:
1) FSP was used to refine the grain structure of AA6061, decreasing the average grain size by 70% compared to the untreated metal.
2) Hardness testing found that hardness increased with additional FSP passes, with hardness up to 1.75 times higher than untreated areas after 4 passes.
3) Microstructural analysis found that FSP effectively refined the grain structure through severe plastic deformation during processing, leading to improved mechanical properties like increased hardness.
Effect of welding parameters and tool shape on properties of friction stir we...IJERA Editor
Friction stir welding (FSW) is a widely used solid state joining process for soft materials such as aluminium alloys because it avoids many of the common problems of fusion welding. It has many benefits when applied to welding of aluminum alloys. FSW process parameters such as welding speed, rotational speed and tool geometry play vital roles in the weld quality. The aim of this research is to investigate the effects of different welding speeds, rotational speeds and tool pin profile on the weld quality of a AA6061 aluminum alloy. A friction stir welding tool consists of rotating shoulder and pin that heats the working piece by friction and moves a softened alloy around it to form a joint. In this research work the effect of the tool shape and welding parameters (rotating speed and welding speed) on the mechanical properties of an aluminium plates will be investigated experimentally. The induced heat during the welding process played the main role in the mechanical and appearance of the joints, which is related to the welding parameters.
Optimization of friction stir welding process parameter using taguchi method ...eSAT Journals
Abstract Friction stir welding (FSW) is relatively new solid state joining process. This joining technique is energy efficient, environment friendly and versatile. Welding is a multiinput-output process in which quality of welded joint is depends upon a input parameter. Therefore optimization of input process parameter is required to achieve good quality of welding. There are so many methods of optimization in which Taguchi method and Response surface methodology are selected for optimization of process parameter. In this review the effect of process parameter on welded joint studied and optimizes the parameter by using Taguchi method and Response surface methodology. The study of Friction stir welding of Aluminium alloy and High density polyethylene sheets shows the improvement in welded joint quality by optimization of process parameter. The main process parameters which affect the strength of welded joint is tool rotational speed, welding speed, axial force and tool pin profile. Keywords: Friction stir welding (FSW), Optimization, Taguchi Method Response surface Methodology Prediction models
FSW PROCESS DISSIMILAR (Al) AT 3G POSITIONMin Dzulkiflee
This document summarizes a research project on friction stir welding (FSW) of dissimilar aluminum alloys. The objectives were to design an FSW weld for joining different aluminum series in a 3G position, evaluate the best welding parameters such as rotational and transverse speed, and analyze tensile strength properties. FSW was performed using different transverse speeds and a fixed rotational speed. Tensile testing showed the highest strength was achieved with a transverse speed of 86mm/min, meeting the project's objectives.
Friction Stir Welding of Magnesium Alloys - A Reviewmsejjournal
The selection of proper material for each application is a critical part in every manufacturing industry.
In the field of aerospace and automobile the major requirement is light weight yet strong material which
can possess every aspect of design parameters. Magnesium alloy one of the major raw material used in
these industries due to its light weight, good thermal conductivity etc. Also Friction stir welding is the
joining process that is being used in these industries as it is a solid state joining process. This paper
gives a detailed review about Friction Stir welding of Mg alloys. The review period is considered from
2009 to 2015.A detailed review about Friction stir welding of Mg alloys has not been done before in this
manner. This review work may be a ready reference for subsequent researchers.
Finite element modeling and bending stress analysis of non standard spur geareSAT Journals
Abstract Gears are toothed wheels, transmitting power and motion from one shaft to another by means of successive engagement of teeth. Having a higher degree of reliability, compactness, high velocity ratio and finally able to transmit motion at a very low velocity, gears are gaining importance as the most efficient means for transmitting power. A gearing system is susceptible to problems such as interference, backlash and undercut. The contact portions of tooth profiles that are not conjugate is called interference. Furthermore due to interference and in the absence of undercut, the involute tip or face of the driven gear tends to dig out the non-involute flank of the driver. The response of a spur gear and its wear is an engineering problem that has not been completely overcome yet. With the perspective of overcoming such defects and for increase the efficiency of gearing system, the use of a non-standard spur gear i.e., an asymmetric spur gear having different pressure angles for drive and coast side of the tooth comes into picture. This paper emphasis on the generation of an asymmetric spur gear tooth using modeling software and bending stress at the root of Asymmetric spur gear tooth is estimated by finite element analysis using ANSYS software and results were compared with the standard spur gear tooth. Keywords: Asymmetric spur gear, Bending stress, Finite element method, Pressure angle
Optimization of Process Parameters of Friction Stir Welding for Similar He-30...IRJET Journal
This document discusses optimization of process parameters for friction stir welding of similar HE-30 aluminium alloy. It begins with an abstract that describes the friction stir welding process and the objectives of using Taguchi methods to optimize welding parameters to achieve high tensile strength. It then provides background on friction stir welding, describing how it is a solid-state welding process that uses a rotating tool to plasticize materials without melting. The document discusses how process parameters like rotational speed, travel speed, and tool geometry can affect joint quality and properties. It aims to use an experimental design and analysis approach to determine the optimum welding conditions for high tensile strength when joining HE-30 aluminium alloy.
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Publishing House
This document describes a numerical simulation of friction stir butt welding for AZ91 magnesium alloy. A 3D nonlinear thermo-mechanical finite element model was developed using ABAQUS to predict temperature distribution and evaluate mechanical properties during the welding process. The model considers heat generation due to friction between the rotating tool and workpiece. Results show the maximum temperature reached was 483°C and residual stress was highest along the weld path. Pressure was also highest in the weld midpoint. Graphs of internal energy and strain energy over time were produced from the simulation results.
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Journals
Abstract Friction Stir Welding (FSW) is a solid state welding process. In particular, it can be used to join high-strength aerospace magnesium and other metallic alloys that are hard to weld by conventional fusion welding. It was performed on 4 mm thickness AZ91 Magnesium alloy. Magnesium alloy have more advantage than aluminum such as light weight, softer, tendency to bend easily, cost effective in terms of energy requirements so magnesium alloy has selected in this FSW technique. In friction stir welding (FSW), a momentous residual stress is present in weld due to complex nature of fixturing system compared to fusion welding. These residual stresses can affect properties of welded components during service. Therefore, for estimating magnitude of welding residual stresses and their nature of distribution along with thermal history, a three dimensional non- linear thermo-mechanical finite element (NLTMFE) model using ABAQUS/ CAE package was developed for butt welded magnesium alloy AZ91. The objective of this work is to predict the temperature distribution in both materials and evaluate the mechanical properties during the friction stir welding on magnesium alloy. Keywords: Fsw, Nltmfe, Abaqus, Cae, Az91.
TENSILE BEHAVIOUR OF ALUMINIUM PLATES (5083) WELDED BY FRICTION STIR WELDING IAEME Publication
Using arc welding, gas welding and other welding process, it is very difficult to weld the aluminum alloys. Friction stir welding, on the other hand, can be used to join most Al alloys and
better surface finishing is achieved. Although the work piece does heat up during friction stir weld, the temperature does not reach the melting point.
Experimental Investigation for Mechanical Properties of Aluminium Alloy Al 60...IRJET Journal
This document presents an experimental investigation of the mechanical properties of friction stir welded aluminum alloy Al 6061 joints considering different friction stir welding parameters. Specifically, it examines the effects of tool shape (taper or threaded), welding speed, and feed rate on the tensile strength, impact toughness, and microhardness of the welded joints. Experiments were conducted according to a Taguchi L8 orthogonal array design of experiments. Results indicated that welding speed had the greatest influence on tensile strength, feed rate most influenced impact toughness and microhardness, and the optimal parameters were a taper tool, 600 RPM welding speed, and 40 mm/min feed rate. These parameters produced joints with maximum mechanical property strengths.
Investigation on effect of welding current on welding speed and hardness of h...eSAT Journals
1) The document investigates the effect of welding current on welding speed and hardness of the heat affected zone (HAZ) and weld metal of mild steel.
2) Testing was conducted on mild steel specimens welded with varying current from 80-100 amps using MMAW. Hardness was measured in the parent metal, HAZ and weld metal.
3) Results showed that as welding current increased, welding time decreased and welding speed increased due to a higher electrode melting rate. Hardness of the HAZ and weld metal decreased with increasing current due to higher heat input.
Investigation on Properties of Structural Steel Joints using Arc and MIG Weld...IRJET Journal
This document investigates the properties of structural steel joints welded using arc and MIG welding processes. Mild steel plates of varying thicknesses were welded using both processes. Samples from the welded joints underwent tensile testing, impact testing, hardness testing, and microscopic analysis to evaluate and compare the mechanical properties. The investigation found that MIG welding joints produced higher mechanical properties than arc welding joints when joining mild steel plates. V-shaped joints also performed better than square butt joints.
IRJET- Friction Stir Welding of AA5052& AA6061 Aluminium Alloy by using T...IRJET Journal
This document discusses friction stir welding of dissimilar aluminum alloys AA5052 and AA6061 using Taguchi methods to optimize welding parameters. AA5052 and AA6061 plates were welded using various tool rotational speeds, transverse feeds, and tilt angles. Tensile testing showed the highest strength of 211MPa occurred with a rotational speed of 700rpm, transverse feed of 110mm/min, and tilt angle of 2 degrees. Taguchi analysis identified tilt angle as the most important parameter, with increased tilt angle improving tensile strength and elongation. Overall, friction stir welding was able to successfully join the dissimilar aluminum alloys.
A Review on Effect of Process Parameters on Tensile Strength of Friction Stir...ijsrd.com
This document summarizes research on the effect of process parameters on the tensile strength of friction stir welded aluminum alloys. It discusses how friction stir welding is a solid-state joining technique used in aerospace, automotive, and other industries. Process parameters like tool rotation speed, traverse speed, and axial force influence weld quality and tensile strength. Several studies investigated how adjusting these parameters affected strength of the welded joints. The optimum parameters were found to produce joints with tensile strengths close to the base metal. Overall, it was concluded that process parameters have a significant impact on weld strength and need to be optimized to achieve the highest possible strength.
Experimental Investigation of Friction Stir Welding Of Aluminum Aa6061 Alloy ...iosrjce
The combination of wrought aluminum-magnesium-silicon alloy confirming to aluminum AA6061
alloy widely accepted because of light weight fabrication structures, high strength to weight ratio and good
corrosion resistance. Friction Stir Welding(FSW) process is an emerging solid state joining process in which
the material that is being welded does not melt and recast when compared to fusion welding process that are
routinely used for joining structural aluminum alloys. In this FSW process a non consumable tool is used to
generate frictional heat in the abutting surfaces. Experiments for surface roughness, Rockwell hardness and
tensile tests are carried out and reported in this paper. The base material used for friction stir welding is
aluminum AA 6061 alloy. Surface roughness values decreases with the increase in speed of the tool and also
there exists an optimum speed to have the good surface finish. Hardness increases with decrease in speed of the
tool but increases after reaching a certain value. Tensile strength increases with the increase in speed of the
tool and also there exists an optimum values for particular feed of the tool.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
IRJET- Material Characterization on Functionally Graded AL-CU Alloy Fabricate...IRJET Journal
This document summarizes a study that characterized the material properties of an Al-Cu alloy fabricated using centrifugal casting at different rotational speeds. Specifically:
- An Al-Cu alloy was centrifugally cast at 400rpm, 600rpm, and 800rpm to produce functionally graded materials with varying properties along the radial direction.
- Testing found that hardness and tensile strength increased with rotational speed, with the 800rpm alloy exhibiting the finest grain structure and highest properties.
- Microstructures showed finer grains and higher hardness at the inner and outer surfaces due to more rapid solidification, with coarser grains and lower hardness in the middle.
IRJET - Effect of Groove Angle on Tensile Strength and Micro-hardness of AISI...IRJET Journal
The document summarizes a study that investigated the effect of groove angle on the tensile strength and microhardness of gas tungsten arc welded AISI 304 stainless steel joints. Three joints were fabricated with groove angles of 45, 60, and 75 degrees and root gaps of 1, 1.5, and 2 mm, respectively. Tensile and microhardness tests found that the joint with the smallest groove angle of 45 degrees possessed the highest tensile strength of 652 MPa and maximum microhardness of 236 HV. In general, tensile strength and microhardness decreased as groove angle increased. The study concluded that smaller groove angles produced welded joints with better tensile strength
manufacturers are facing the challenges of
higher Quality and productivity are two
important . Productivity can be interpreted
in terms of material removal rate in the
machining operation and quality represents
satisfactory yield in terms of product
characteristics as desired by the customers.
but conflicting criteria in any machining
operations. In order to ensure high
productivity, extent of quality is to be
compromised.
Effect of pin profile on friction stir welded aluminum matrix compositesAsif Ali
The document discusses the effect of pin profile geometry on friction stir welded aluminum matrix composites. It finds that a square pin profile produces welds with smaller and finer grains compared to hexagonal and octagonal pin profiles. This leads to improved hardness, tensile strength, and wear resistance due to the relationship between smaller grain size and better mechanical properties. The square pin profile causes less heat input during welding, resulting in less grain growth and better properties compared to the other pin profiles tested. Increasing welding speed and decreasing rotational speed also reduce heat input and improve properties by limiting grain growth during cooling.
Friction stir welding of aluminium 5086 alloyseSAT Journals
Abstract Friction Stir welding (FSW) is a solid state attachment method used for welding of metals of same and different metals. This process of friction stir welding (FSW) is widely using for the reason it can produces sound welds and doesn't have common issues like solidification and liquefaction cracking connected to the fusion techniques. The Friction stir welding of Al 5086 alloys had been commercialized and up to date interest is targeted on change of integrity with different metals. Thus on commercialize this method, analysis studies are required to characterize. particularly, FSW has impressed researchers to aim modification of integrity different metals like aluminum 5086 that differ in properties and sound welds with none or restricted inter metallic bonding of components has been done. In this paper we have to make a research on the current analysis state of FSW between aluminum 5086 with attention on the resulting welding and tensile strength, microstructure, elongation and the tools are used to produce the welds and also an insight into future analysis during this process of study the project of friction welding. By this process in our project we got an idea of going to maintain the rotational speed (rpm) 450 to 1400 and also by changing welding rpm (speed). This friction stir welding is used in nasa for joining of two totally different or same types of materials. Keywords: Friction stir welding, Tool, Welding parameters, and Mechanical properties etc…
IRJET- Optimization on Friction Welding of Duplex Stainless Steel-S31803IRJET Journal
This document summarizes research optimizing friction welding parameters for joining duplex stainless steel S31803. 12 specimens were friction welded with varying friction load, friction time, forging load, and forging time. Microstructure analysis, hardness testing, tensile testing, bending testing, and impact testing were performed on the welded specimens. Hardness testing revealed the weld metal zone was softer than the base metal zone. Tensile testing showed ultimate strengths up to 574 MPa. Microstructure analysis showed a mixture of recrystallized grains in the weldment. Optimization of welding parameters is important for producing high quality welds of duplex stainless steel S31803.
The document summarizes an experimental analysis of weld strength in friction stir welding of different grades of aluminum alloy using different tool geometries. Specifically, it analyzes welding 6061, 7005, and 8011 aluminum alloys with a cylindrical tool and tapered threaded tool. Tensile testing found that the tapered threaded tool produced stronger welds across all aluminum grades compared to the cylindrical tool, with strengths increasing up to 30%. This is because the threaded tool generates more friction and distributes the metal more evenly in the weld zone. Visual analysis also found the threaded tool produced better surface finish quality than the cylindrical tool.
Analysis of Interfacial Microsstructure of Post Weld Heat Treated Dissimilar ...IOSR Journals
This document analyzes the interfacial microstructure of a post weld heat treated dissimilar metal weld between type 316LN austenitic stainless steel and C-steel. Single V-groove butt joints were welded using Inconel 182 welding consumables. The joints were post weld heat treated at temperatures between 898K to 973K for 1 hour. Microstructural analysis found that in the as-welded condition, the weld/C-steel interface consisted mostly of martensite or ferrite and carbides. Post weld heat treatment resulted in the precipitation of carbides at the interface. Heat treating at 973K led to recrystallized grains in the C-
IRJET- Emphasis of Plate-Thickness and Groove Angle on Distortion for Mild St...IRJET Journal
The document summarizes research into minimizing welding distortion, which is a change in shape that occurs between welded plates before and after welding. The research investigates the effect of plate thickness (6, 7, and 8mm) and groove angle (60, 90, and 120 degrees) on angular distortion in mild steel butt joints welded using manual metal arc welding (MMAW). Mathematical models are developed using response surface methodology to predict transverse and longitudinal shrinkage distortion based on plate thickness and groove angle. Analysis of variance (ANOVA) testing shows that the models accurately predict distortion. The research aims to provide empirical data to better understand different types of welding distortion.
Review on Effect of Process Parameters - Friction Stir Welding ProcessIRJET Journal
This document reviews the effect of process parameters, specifically tool rotation speed and welding speed, on the properties of friction stir welded joints. It summarizes findings from previous studies that have investigated how these parameters influence tensile strength, microstructure, and microhardness of welded aluminum alloys. The key findings are that increasing tool rotation speed generally leads to higher heat input which can improve tensile strength and ductility up to a point, but also promotes grain growth. Faster welding speeds decrease heat input and grain size. Overall, an optimal combination of tool rotation and welding speeds is needed to achieve desirable mechanical properties and microstructure in friction stir welded joints.
A novel four wire inverter system using SVPWM technique for ups applicationsIRJET Journal
This document describes a novel four-wire inverter system using space vector pulse width modulation (SVM) technique for uninterruptible power supply (UPS) applications. It introduces the concept of SVM for four-wire voltage source inverters. A four-wire inverter provides a neutral connection for three-phase four-wire systems to handle neutral current from unbalanced or non-linear loads. The SVM technique approximates the reference voltage vector during each sampling interval using the three nearest inverter switching state vectors. Simulation results using MATLAB/Simulink analyze the performance of the four-wire SVM inverter under different loading conditions in terms of total harmonic distortion.
Sag/Swell Compensation by using BES DVR in Industrial Drives ApplicationsIRJET Journal
This document discusses using a Battery Energy Storage System (BESS) supported Dynamic Voltage Restorer (DVR) to compensate for voltage sags, swells, and harmonics in industrial drive applications. A DVR injects voltage in series with the distribution line to regulate the load voltage. It describes the components of a DVR including the voltage source inverter, injection transformers, filters, energy storage, and bypass switch. It then explains the operation and control of a DVR using synchronous reference frame theory to estimate reference voltages and generate PWM signals to inject compensating voltages. The control techniques allow a DVR with BESS to maintain constant load voltage magnitude during sags or swells while minimizing the rating of the voltage source
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Publishing House
This document describes a numerical simulation of friction stir butt welding for AZ91 magnesium alloy. A 3D nonlinear thermo-mechanical finite element model was developed using ABAQUS to predict temperature distribution and evaluate mechanical properties during the welding process. The model considers heat generation due to friction between the rotating tool and workpiece. Results show the maximum temperature reached was 483°C and residual stress was highest along the weld path. Pressure was also highest in the weld midpoint. Graphs of internal energy and strain energy over time were produced from the simulation results.
Numerical simulation of friction stir butt welding processes for az91 magnesi...eSAT Journals
Abstract Friction Stir Welding (FSW) is a solid state welding process. In particular, it can be used to join high-strength aerospace magnesium and other metallic alloys that are hard to weld by conventional fusion welding. It was performed on 4 mm thickness AZ91 Magnesium alloy. Magnesium alloy have more advantage than aluminum such as light weight, softer, tendency to bend easily, cost effective in terms of energy requirements so magnesium alloy has selected in this FSW technique. In friction stir welding (FSW), a momentous residual stress is present in weld due to complex nature of fixturing system compared to fusion welding. These residual stresses can affect properties of welded components during service. Therefore, for estimating magnitude of welding residual stresses and their nature of distribution along with thermal history, a three dimensional non- linear thermo-mechanical finite element (NLTMFE) model using ABAQUS/ CAE package was developed for butt welded magnesium alloy AZ91. The objective of this work is to predict the temperature distribution in both materials and evaluate the mechanical properties during the friction stir welding on magnesium alloy. Keywords: Fsw, Nltmfe, Abaqus, Cae, Az91.
TENSILE BEHAVIOUR OF ALUMINIUM PLATES (5083) WELDED BY FRICTION STIR WELDING IAEME Publication
Using arc welding, gas welding and other welding process, it is very difficult to weld the aluminum alloys. Friction stir welding, on the other hand, can be used to join most Al alloys and
better surface finishing is achieved. Although the work piece does heat up during friction stir weld, the temperature does not reach the melting point.
Experimental Investigation for Mechanical Properties of Aluminium Alloy Al 60...IRJET Journal
This document presents an experimental investigation of the mechanical properties of friction stir welded aluminum alloy Al 6061 joints considering different friction stir welding parameters. Specifically, it examines the effects of tool shape (taper or threaded), welding speed, and feed rate on the tensile strength, impact toughness, and microhardness of the welded joints. Experiments were conducted according to a Taguchi L8 orthogonal array design of experiments. Results indicated that welding speed had the greatest influence on tensile strength, feed rate most influenced impact toughness and microhardness, and the optimal parameters were a taper tool, 600 RPM welding speed, and 40 mm/min feed rate. These parameters produced joints with maximum mechanical property strengths.
Investigation on effect of welding current on welding speed and hardness of h...eSAT Journals
1) The document investigates the effect of welding current on welding speed and hardness of the heat affected zone (HAZ) and weld metal of mild steel.
2) Testing was conducted on mild steel specimens welded with varying current from 80-100 amps using MMAW. Hardness was measured in the parent metal, HAZ and weld metal.
3) Results showed that as welding current increased, welding time decreased and welding speed increased due to a higher electrode melting rate. Hardness of the HAZ and weld metal decreased with increasing current due to higher heat input.
Investigation on Properties of Structural Steel Joints using Arc and MIG Weld...IRJET Journal
This document investigates the properties of structural steel joints welded using arc and MIG welding processes. Mild steel plates of varying thicknesses were welded using both processes. Samples from the welded joints underwent tensile testing, impact testing, hardness testing, and microscopic analysis to evaluate and compare the mechanical properties. The investigation found that MIG welding joints produced higher mechanical properties than arc welding joints when joining mild steel plates. V-shaped joints also performed better than square butt joints.
IRJET- Friction Stir Welding of AA5052& AA6061 Aluminium Alloy by using T...IRJET Journal
This document discusses friction stir welding of dissimilar aluminum alloys AA5052 and AA6061 using Taguchi methods to optimize welding parameters. AA5052 and AA6061 plates were welded using various tool rotational speeds, transverse feeds, and tilt angles. Tensile testing showed the highest strength of 211MPa occurred with a rotational speed of 700rpm, transverse feed of 110mm/min, and tilt angle of 2 degrees. Taguchi analysis identified tilt angle as the most important parameter, with increased tilt angle improving tensile strength and elongation. Overall, friction stir welding was able to successfully join the dissimilar aluminum alloys.
A Review on Effect of Process Parameters on Tensile Strength of Friction Stir...ijsrd.com
This document summarizes research on the effect of process parameters on the tensile strength of friction stir welded aluminum alloys. It discusses how friction stir welding is a solid-state joining technique used in aerospace, automotive, and other industries. Process parameters like tool rotation speed, traverse speed, and axial force influence weld quality and tensile strength. Several studies investigated how adjusting these parameters affected strength of the welded joints. The optimum parameters were found to produce joints with tensile strengths close to the base metal. Overall, it was concluded that process parameters have a significant impact on weld strength and need to be optimized to achieve the highest possible strength.
Experimental Investigation of Friction Stir Welding Of Aluminum Aa6061 Alloy ...iosrjce
The combination of wrought aluminum-magnesium-silicon alloy confirming to aluminum AA6061
alloy widely accepted because of light weight fabrication structures, high strength to weight ratio and good
corrosion resistance. Friction Stir Welding(FSW) process is an emerging solid state joining process in which
the material that is being welded does not melt and recast when compared to fusion welding process that are
routinely used for joining structural aluminum alloys. In this FSW process a non consumable tool is used to
generate frictional heat in the abutting surfaces. Experiments for surface roughness, Rockwell hardness and
tensile tests are carried out and reported in this paper. The base material used for friction stir welding is
aluminum AA 6061 alloy. Surface roughness values decreases with the increase in speed of the tool and also
there exists an optimum speed to have the good surface finish. Hardness increases with decrease in speed of the
tool but increases after reaching a certain value. Tensile strength increases with the increase in speed of the
tool and also there exists an optimum values for particular feed of the tool.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
IRJET- Material Characterization on Functionally Graded AL-CU Alloy Fabricate...IRJET Journal
This document summarizes a study that characterized the material properties of an Al-Cu alloy fabricated using centrifugal casting at different rotational speeds. Specifically:
- An Al-Cu alloy was centrifugally cast at 400rpm, 600rpm, and 800rpm to produce functionally graded materials with varying properties along the radial direction.
- Testing found that hardness and tensile strength increased with rotational speed, with the 800rpm alloy exhibiting the finest grain structure and highest properties.
- Microstructures showed finer grains and higher hardness at the inner and outer surfaces due to more rapid solidification, with coarser grains and lower hardness in the middle.
IRJET - Effect of Groove Angle on Tensile Strength and Micro-hardness of AISI...IRJET Journal
The document summarizes a study that investigated the effect of groove angle on the tensile strength and microhardness of gas tungsten arc welded AISI 304 stainless steel joints. Three joints were fabricated with groove angles of 45, 60, and 75 degrees and root gaps of 1, 1.5, and 2 mm, respectively. Tensile and microhardness tests found that the joint with the smallest groove angle of 45 degrees possessed the highest tensile strength of 652 MPa and maximum microhardness of 236 HV. In general, tensile strength and microhardness decreased as groove angle increased. The study concluded that smaller groove angles produced welded joints with better tensile strength
manufacturers are facing the challenges of
higher Quality and productivity are two
important . Productivity can be interpreted
in terms of material removal rate in the
machining operation and quality represents
satisfactory yield in terms of product
characteristics as desired by the customers.
but conflicting criteria in any machining
operations. In order to ensure high
productivity, extent of quality is to be
compromised.
Effect of pin profile on friction stir welded aluminum matrix compositesAsif Ali
The document discusses the effect of pin profile geometry on friction stir welded aluminum matrix composites. It finds that a square pin profile produces welds with smaller and finer grains compared to hexagonal and octagonal pin profiles. This leads to improved hardness, tensile strength, and wear resistance due to the relationship between smaller grain size and better mechanical properties. The square pin profile causes less heat input during welding, resulting in less grain growth and better properties compared to the other pin profiles tested. Increasing welding speed and decreasing rotational speed also reduce heat input and improve properties by limiting grain growth during cooling.
Friction stir welding of aluminium 5086 alloyseSAT Journals
Abstract Friction Stir welding (FSW) is a solid state attachment method used for welding of metals of same and different metals. This process of friction stir welding (FSW) is widely using for the reason it can produces sound welds and doesn't have common issues like solidification and liquefaction cracking connected to the fusion techniques. The Friction stir welding of Al 5086 alloys had been commercialized and up to date interest is targeted on change of integrity with different metals. Thus on commercialize this method, analysis studies are required to characterize. particularly, FSW has impressed researchers to aim modification of integrity different metals like aluminum 5086 that differ in properties and sound welds with none or restricted inter metallic bonding of components has been done. In this paper we have to make a research on the current analysis state of FSW between aluminum 5086 with attention on the resulting welding and tensile strength, microstructure, elongation and the tools are used to produce the welds and also an insight into future analysis during this process of study the project of friction welding. By this process in our project we got an idea of going to maintain the rotational speed (rpm) 450 to 1400 and also by changing welding rpm (speed). This friction stir welding is used in nasa for joining of two totally different or same types of materials. Keywords: Friction stir welding, Tool, Welding parameters, and Mechanical properties etc…
IRJET- Optimization on Friction Welding of Duplex Stainless Steel-S31803IRJET Journal
This document summarizes research optimizing friction welding parameters for joining duplex stainless steel S31803. 12 specimens were friction welded with varying friction load, friction time, forging load, and forging time. Microstructure analysis, hardness testing, tensile testing, bending testing, and impact testing were performed on the welded specimens. Hardness testing revealed the weld metal zone was softer than the base metal zone. Tensile testing showed ultimate strengths up to 574 MPa. Microstructure analysis showed a mixture of recrystallized grains in the weldment. Optimization of welding parameters is important for producing high quality welds of duplex stainless steel S31803.
The document summarizes an experimental analysis of weld strength in friction stir welding of different grades of aluminum alloy using different tool geometries. Specifically, it analyzes welding 6061, 7005, and 8011 aluminum alloys with a cylindrical tool and tapered threaded tool. Tensile testing found that the tapered threaded tool produced stronger welds across all aluminum grades compared to the cylindrical tool, with strengths increasing up to 30%. This is because the threaded tool generates more friction and distributes the metal more evenly in the weld zone. Visual analysis also found the threaded tool produced better surface finish quality than the cylindrical tool.
Analysis of Interfacial Microsstructure of Post Weld Heat Treated Dissimilar ...IOSR Journals
This document analyzes the interfacial microstructure of a post weld heat treated dissimilar metal weld between type 316LN austenitic stainless steel and C-steel. Single V-groove butt joints were welded using Inconel 182 welding consumables. The joints were post weld heat treated at temperatures between 898K to 973K for 1 hour. Microstructural analysis found that in the as-welded condition, the weld/C-steel interface consisted mostly of martensite or ferrite and carbides. Post weld heat treatment resulted in the precipitation of carbides at the interface. Heat treating at 973K led to recrystallized grains in the C-
IRJET- Emphasis of Plate-Thickness and Groove Angle on Distortion for Mild St...IRJET Journal
The document summarizes research into minimizing welding distortion, which is a change in shape that occurs between welded plates before and after welding. The research investigates the effect of plate thickness (6, 7, and 8mm) and groove angle (60, 90, and 120 degrees) on angular distortion in mild steel butt joints welded using manual metal arc welding (MMAW). Mathematical models are developed using response surface methodology to predict transverse and longitudinal shrinkage distortion based on plate thickness and groove angle. Analysis of variance (ANOVA) testing shows that the models accurately predict distortion. The research aims to provide empirical data to better understand different types of welding distortion.
Review on Effect of Process Parameters - Friction Stir Welding ProcessIRJET Journal
This document reviews the effect of process parameters, specifically tool rotation speed and welding speed, on the properties of friction stir welded joints. It summarizes findings from previous studies that have investigated how these parameters influence tensile strength, microstructure, and microhardness of welded aluminum alloys. The key findings are that increasing tool rotation speed generally leads to higher heat input which can improve tensile strength and ductility up to a point, but also promotes grain growth. Faster welding speeds decrease heat input and grain size. Overall, an optimal combination of tool rotation and welding speeds is needed to achieve desirable mechanical properties and microstructure in friction stir welded joints.
A novel four wire inverter system using SVPWM technique for ups applicationsIRJET Journal
This document describes a novel four-wire inverter system using space vector pulse width modulation (SVM) technique for uninterruptible power supply (UPS) applications. It introduces the concept of SVM for four-wire voltage source inverters. A four-wire inverter provides a neutral connection for three-phase four-wire systems to handle neutral current from unbalanced or non-linear loads. The SVM technique approximates the reference voltage vector during each sampling interval using the three nearest inverter switching state vectors. Simulation results using MATLAB/Simulink analyze the performance of the four-wire SVM inverter under different loading conditions in terms of total harmonic distortion.
Sag/Swell Compensation by using BES DVR in Industrial Drives ApplicationsIRJET Journal
This document discusses using a Battery Energy Storage System (BESS) supported Dynamic Voltage Restorer (DVR) to compensate for voltage sags, swells, and harmonics in industrial drive applications. A DVR injects voltage in series with the distribution line to regulate the load voltage. It describes the components of a DVR including the voltage source inverter, injection transformers, filters, energy storage, and bypass switch. It then explains the operation and control of a DVR using synchronous reference frame theory to estimate reference voltages and generate PWM signals to inject compensating voltages. The control techniques allow a DVR with BESS to maintain constant load voltage magnitude during sags or swells while minimizing the rating of the voltage source
Color to sound converter for blind peopleIRJET Journal
This document describes a system that detects color and converts it to sound to help blind people identify colors. The system uses a color sensor that detects RGB values of a color and sends it serially to a PIC microcontroller. The microcontroller then plays corresponding musical notes or tones from a stored database to indicate the detected color. This allows blind people to perceive color through sound. The system is still being developed to formalize the mathematical relationship between color and sound.
Study of Multipurpose Road Cleaning MachineIRJET Journal
This document describes a study of a multipurpose road cleaning machine. The machine aims to address cleanliness issues in India through a single machine that can perform multiple cleaning functions. It has units for brushing roads, blowing dust, cleaning pipes and manholes, and picking up and removing obstacles using a mechanical arm. The machine is powered by batteries and can be remotely operated. It is designed to be low-cost compared to other options and provide an eco-friendly way to efficiently clean roads and the environment with minimal human effort. The document discusses the machine's design, construction, working mechanisms of its various units, and concludes that it has the potential to play a vital role in improving cleanliness across India.
A Distributed Time Triggered Control for a Feedback Control SystemIRJET Journal
This document presents a distributed time triggered control system for regulating an inverted rotary pendulum (IRP) using time triggered CAN (TTCAN) communication. The control tasks are separated and distributed across four controller nodes based on balancing computational load. A communication schedule and operation schedules are used to manage deterministic message passing and ensure critical tasks are completed by their deadlines. The design was tested on a physical IRP model and able to stably regulate the pendulum in the upright position with a processing period of 3 milliseconds.
IOT based fuel monitoring for future vehicles.IRJET Journal
This document proposes an IoT-based fuel monitoring system for vehicles to avoid financial losses from inaccurate fuel filling records. The system uses a flow sensor activated by fuel flow to calculate the amount filled and notify the owner. It sends the fuel data to the cloud and tracks the filling location via GPS on the user's phone. The system architecture involves a flow sensor, microcontroller, and cloud server for data storage. It aims to allow users to check accurate fuel amounts filled and locations to prevent losses from incorrect records.
Fabrication of automatic hydraulic bending and bend removing machineIRJET Journal
This document describes the design and fabrication of an automatic hydraulic bending and bend removing machine. The machine uses hydraulics to bend and remove bends from pipes and rods. It consists of a hydraulic jack, die holders, pulley, slider, wiper motor and battery. Pipes are placed in die holders which are bent by the hydraulic jack when activated by the wiper motor and battery power. Bends can be removed by changing the die to a rectangular one. The machine allows for automated and precise bending and removing of bends in an economical manner compared to conventional methods. It has applications in production industries and automotive workshops.
Performance and Emission Test on Gasoline Engine Using Cyclohexylamine and n-...IRJET Journal
This document summarizes a study that tested the performance and emissions of a gasoline engine using two fuel additives: cyclohexylamine and n-butyl alcohol. The additives were each blended at 5 ml with gasoline and tested in a twin cylinder spark ignition engine. Test results found that both additives increased brake thermal efficiency up to 1-1.5% and increased NOx emissions. Emissions of HC and CO were reduced by 6-7% and 11-22%, respectively, for the two additives compared to gasoline alone. The document provides details on the experimental setup, testing methodology, results, and conclusions drawn.
An analysis of effect of variable compression ratio in C.I. engine using turb...IRJET Journal
This document analyzes the effect of variable compression ratio in a turbocharged diesel engine. It discusses using a single cylinder diesel engine to test performance at different loads and compression ratios ranging from 12.1 to 18.1. The turbocharger is used to increase engine efficiency and performance by boosting intake air pressure. Theoretical calculations of parameters like brake power, fuel consumption, thermal efficiency are presented. Results show that increasing the compression ratio and intake boost pressure improves brake thermal efficiency. It was concluded that a variable compression ratio concept can improve engine performance and efficiency while reducing emissions.
This document discusses construction quality auditing and factors that affect construction quality. It identifies 72 factors divided into 4 groups - engineering, contractor, quality control, and customer satisfaction. A questionnaire survey was conducted with 26 construction project respondents in Kolhapur, India. The top 10 factors affecting construction quality based on their relative importance index are: 1) skilled labor, 2) technical staff, 3) material quality, 4) curing work, 5) well-equipped machinery, 6) material variance, 7) material reuse, 8) compliance with work, 9) employee qualifications, and 10) decision making. The study found that skilled labor, technical staff oversight, and material quality were the most important factors for ensuring construction quality.
The document describes an automatic pneumatic bumper system for vehicles. The system uses an IR sensor to detect obstacles in front of the vehicle. When an obstacle is detected, the IR sensor sends a signal to activate a pneumatic cylinder and solenoid valve. This causes the pneumatic bumper to extend out and protect the vehicle from damage on impact. It also cuts power to the vehicle's motor, engaging the brakes to stop the vehicle and prevent an accident. The system aims to reduce accidents by automatically detecting obstacles and activating braking and protective measures.
Portable voice communication system on raspberry piIRJET Journal
This document summarizes a research paper on developing a portable voice communication system using a Raspberry Pi. The system uses Asterisk software to establish communication between mobile devices over WiFi. Asterisk transforms a computer into a communications server by routing voice over internet protocol (VoIP) packets. The researchers propose setting up a Raspberry Pi and laptop on a local network to test a SIP client application. Once configured, the system would allow users to make voice or video calls between phones and laptops without a SIM card or internet by assigning IP addresses and proxies. The portable system provides benefits like low cost, remote access, and reduced wiring compared to traditional PBX phone systems.
Performance Analysis of DSR, STAR, ZRP Routing Protocols for a Dynamic Ad-Hoc...IRJET Journal
This document analyzes the performance of three routing protocols - DSR, STAR, and ZRP - for dynamic ad hoc networks using the Qualnet network simulator. It finds that STAR has superior performance to DSR and ZRP in terms of average end-to-end delay and jitter (variation in packet arrival times), while DSR has the best throughput. As node density increases from 25 to 125 nodes, STAR continues to outperform DSR and ZRP in delay and jitter, and DSR maintains the highest throughput. The document concludes that STAR is best able to support a dynamic ad hoc network with changing topology.
Localization of wireless sensor networkIRJET Journal
This document summarizes a range-free localization algorithm for wireless sensor networks called TSBMCL (Temporary-Seed Based Monte Carlo Localization) that uses the Monte Carlo method. It discusses how TSBMCL works in two main parts: 1) voting for temporary anchor nodes from localized nodes, and 2) using the temporary anchors to aid localization of other nodes. The algorithm is shown to improve localization accuracy over the MCB algorithm. Simulation results demonstrate that TSBMCL reduces localization failure rates and requires fewer sampling particles than standard Monte Carlo localization methods. In conclusion, TSBMCL provides an accurate and efficient range-free localization scheme for mobile wireless sensor networks.
Analysis of 24×7 Water Distribution Network of Gabbur zone in Hubballi city, ...IRJET Journal
The document analyzes the 24x7 water distribution network of Gabbur zone in Hubballi city, India using EPANET software. It describes the study area and methodology, which involves importing the network into EPANET, editing pipe and node properties, running simulations, and analyzing results for pressure, flow, and water quality. The results show that pressure at all nodes and flow in all pipes is sufficient to meet demands across the network. Tables 1 and 2 present sample hydraulic parameters and flow/velocity results.
Design and demonstration of heat pipe based waste heat recovery systemIRJET Journal
This document describes the design and demonstration of a heat pipe-based waste heat recovery system. Key points:
- Heat pipes allow for highly efficient heat transfer over long distances with minimal temperature loss through the evaporation and condensation of a working fluid inside a sealed pipe.
- The authors designed and built a heat recovery system using 10 copper heat pipes fitted with aluminum fins to transfer heat from a hot air source to a cooler air sink.
- Testing showed the heat pipes could transfer heat with a temperature difference of only 2-3°C over a length of 150mm, much better than a comparable copper pipe.
- The heat recovery system achieved efficiencies up to 62% at recovering heat from a
A Geo-PFM Model for Point Of Interest RecommendationIRJET Journal
The document discusses recommending points of interest (POIs) like restaurants and movie theaters by proposing a geographical probabilistic factor modeling (Geo-PFM) framework. Geo-PFM considers factors like user preferences, geographical influences based on Tobler's law of geography, and user mobility patterns that impact a user's choice of POI. It provides flexible modeling of check-in data that can be sparse. Experimental results on real LBSN datasets show the proposed systems outperform baseline models in recommending POIs to users.
Gesture control wheel chair cum stretcherIRJET Journal
This document summarizes a research paper on developing a gesture-controlled wheelchair and stretcher system. The system uses accelerometers and microcontrollers to detect hand gestures and control electric motors that move the wheelchair in directions like left, right, forward, and brake. It can also convert the wheelchair into a stretcher by adjusting the seat height with actuators. The goal is to create a hands-free mobility aid for disabled users to control through natural hand motions. The paper describes the technical components, communication system, and hardware implementation to read gestures and translate them into wheelchair commands. The results demonstrate the ability to accurately control wheelchair direction and conversion through different hand position inputs.
Optimum design of braking system for a formula 3 race cars with numeric compu...IRJET Journal
The document describes the design and analysis of the braking system for a Formula 3 race car. Key points:
- A bike's disc rotor and calipers were selected to reduce weight. Calculations showed the clamping force was sufficient and thermal analysis validated the safety of using the bike's rotor.
- Calculations determined braking forces, torques, bias, and performance. A tandem master cylinder provided independent circuits.
- Steady state and dynamic thermal-structural analyses in ANSYS and ABAQUS showed temperature distributions, stresses, and deformations met requirements.
- The implemented system achieved a weight reduction of around 11kg compared to a standard system, improving performance.
Design and analysis for supporting system of circular ESR for different seism...IRJET Journal
This document analyzes and compares the design of supporting systems for circular elevated water tanks of the same 300m3 capacity located in different seismic zones (II, III, and IV) in India. The study models the tank and conducting response spectrum analysis to calculate seismic forces - shear force, axial force, and bending moment - induced on peripheral and interior columns under full and empty tank conditions. Results show seismic forces generally increase with higher seismic zone and are greater for interior columns compared to peripheral columns. For Zone IV, interior columns fail the bending moment check, indicating larger column sizes are needed. In conclusion, seismic forces on a tank's supporting structure vary significantly based on the seismic zone and column location.
IRJET- Effect of Al2O3 Nano-Particles on AA1060 Joints Fabricated by Friction...IRJET Journal
1) The document studies the effect of adding Al2O3 nanoparticles on the tensile strength of AA1060 aluminum alloy joints fabricated using friction stir welding (FSW).
2) Testing showed that FSW joints with nanoparticles had higher ultimate tensile strength than joints without nanoparticles. However, joints with nanoparticles also had reduced ductility.
3) The results indicated that maximum tensile strength was achieved at lower tool rotation speeds and lower traverse speeds, as these parameters generated less heat during welding. Both higher rotation and traverse speeds reduced tensile strength.
Experimental Analysis on Wire Arc Additive ManufacturingIRJET Journal
The document summarizes an experimental analysis of wire arc additive manufacturing (WAAM) of mild steel. Microscopic analysis found the deposition occurred in both parallel and perpendicular orientations, with grain structures including equiaxed and columnar formations. Hardness testing found values between 18-47 kg/mm2, while mechanical testing found maximum tensile and yield strengths of 25.05 and 560.69 MPa respectively in the through deposition direction. The study aims to optimize the WAAM process by analyzing defects like hot cracking and gas porosity at different deposition parameters.
Investigation and analysis of metallurgical and mechanical properties of aa11...Alexander Decker
1. The document investigates the mechanical and metallurgical properties of friction stir welded joints of AA1100 aluminum alloy fabricated at different tool rotational speeds and material positions.
2. Tensile tests, microhardness tests, and optical/SEM microscopy of the welds were used to evaluate the mechanical properties and microstructure of the joints.
3. The results showed that joints welded at 1200 rpm had the optimum properties, with smooth weld surfaces and good tensile strength, yield strength, and elongation. Microhardness was also highest at this welding condition.
Design and Experimental study of Friction stir welding of AA6061-T6 Alloy for...IRJET Journal
This document discusses the design and experimental study of friction stir welding (FSW) of AA6061-T6 aluminum alloy. The goal is to optimize welding parameters using a lathe machine. FSW is a solid-state welding process that joins metals without melting. The tool geometry and process parameters significantly impact weld quality. Experiments were conducted using different tool profiles and transverse speeds on AA6061 aluminum alloy plates of varying thickness on a lathe machine. Numerical simulations were also performed to model the thermal and mechanical effects of FSW. The simulations showed temperature distributions and deformation patterns during welding. Overall, the study aimed to understand how tool design and process parameters affect the mechanical properties and quality of FSW aluminum welds.
Experimental Analysis to Optimize parameters of Friction Stir Welding of Alum...IJSRD
This document summarizes research on optimizing parameters for friction stir welding (FSW) of aluminum alloys. It first provides background on FSW and discusses how parameters like tool rotation speed, tilt angle, and travel speed affect weld strength. The document then reviews several other studies investigating these parameters. One study found that a tool rotation speed of 900 rpm, travel speed of 75 mm/min, and axial force of 3 kN produced the highest tensile strength for an aluminum alloy. Another identified tilt angle as the most influential parameter for weld strength. Finally, the document describes using the Taguchi method to optimize FSW parameters for aluminum alloy, identifying tilt angle as most significant. It concludes that tool rotation speed, travel
Effect Of Process Parameters On Mechanical Properties Of Friction Stir.Welded...IJERA Editor
Friction Stir Welding (FSW) is an advance joining process for different similar and dissimilar materials. It is
commonly used for joining of Aluminum alloys. However it is necessary to overcome some challenges for its
wide-spread uses. Tool design and the selection of process parameters are critical issues in the usage of this
process. This study focuses on the process parameters that is required for producing effective friction stir
welding of two similar aluminum alloys (AA6101T6 to AA6101T6) and dissimilar Aluminum alloys
(AA6101T6 alloy to AA6351T6) . Three different tool diameters such as 20 mm, 25 mm and 30 mm with three
different tool rotational speeds such as 600 rpm, 800 rpm and 1200 rpm have been used to weld the joints. The
welded samples were tested for mechanical properties as well as microstructure. It was observed that 30 mm
tool gives better weld quality for friction stir welding of similar aluminum alloy but 25 mm tool with 1200 rpm
rotational speed gave satisfactory weld quality for friction stir welding of dissimilar aluminum alloys. It is one
of the important welding process that can adopted for welding of aluminum alloys with excellent mechanical
properties. The results were confirmed by further experiments.
EFFECT OF TiO2 NANOPARTICLES ON FRICTION STIR WELDED JOINTS OF AA8011 ALUMINI...IRJET Journal
This document discusses a study investigating the effect of TiO2 nanoparticles on friction stir welded joints of AA8011 aluminum alloy. AA8011 aluminum alloy plates were friction stir welded with TiO2 nanoparticles added to the weld groove before welding. Various welding parameters were varied to evaluate their effect on the mechanical properties and microstructure of the welded joints. Tensile tests, impact tests, and microhardness tests were performed on the welded joints and results were compared to published data. The maximum tensile strength and impact value obtained were 52.98 MPa and 5.0 joules, respectively, at a rotational speed of 1400 RPM and welding speed of 25mm/min.
This document summarizes a study that investigated the mechanical and metallurgical properties of friction stir welded AA1100 aluminum alloy joints. Different welding parameters were tested, including tool rotation speed (800-1400 rpm) and material positioning (advancing vs. retreating side). Microhardness, tensile, and fracture surface tests were used to evaluate the mechanical properties. Optical and SEM microscopy were used to analyze the microstructural evolution. The goal was to understand how processing parameters affect properties and defect development in similar AA1100 alloy joints.
This document presents an optimization study of friction stir welding process parameters for aluminum alloys to achieve maximum tensile strength. Experiments were conducted using Taguchi's design of experiments method to evaluate the effects of rotational speed, tool tilt angle, and travel speed on joint strength. Analysis of variance revealed that tool tilt angle was the most influential parameter, contributing 47.39% to tensile strength, followed by travel speed at 42.18%. The optimal parameters predicted were 1300 rpm rotational speed, 1° tool tilt angle, and 60 mm/min travel speed, which were expected to yield a maximum tensile strength of 285 MPa. Experimental validation of these optimal parameters produced a joint strength of 288 MPa, close to the predicted value.
Effects and defects of the polypropylene plate for different parameters in fr...eSAT Journals
Abstract Polypropylene is one of the thermoplastic materials used in the lot of engineering applications such as marine, aerospace, automotive, toys and etc. Friction Stir Welding (FSW) is a solid-state method of used for joining metals. FSW process was successfully extended to join thermoplastic materials. In this paper an attempt has been made to understand the mechanism of friction stir welding joints of polypropylene plates. In this study, the role of FSW tool pin profile, rotational speed and welding speed are analyzed with respective to the quality of the joints. This research outlines the method of welding and optimization of FSW process parameters for polypropylene material by Taguchi optimization methodology. Experiments were performed at rotational speed of 1500, 1750, 2000 and 2250 rpm, Welding speeds of 30, 40, 50 and 60 mm/min, and tool pin profiles of Triangular, square, Threaded and taper pin profiles. The experiments are conducted in CNC vertical machining centre with special fixture. Microstructural characteristics were evaluated by using optical microscopy and hardness are observed in weld joints. The micro structure and Rockwell hardness of the welded region was created by threaded pin profile with welding speed of 40 and 50 mm/min and rotational speed of 2250 and 1500 rpm act as right friction stir welding parameters to avoid defects in joining of polypropylene materials. Index Terms: Polypropylene, Microstructure, Hardness, Pin profile, Speed, Feed, and Weld zone
Review paper on friction stir welding of various materialIRJET Journal
The document reviews friction stir welding (FSW), a solid-state welding technique invented in 1991. It discusses how FSW works, common materials welded, key process parameters like rotational speed and welding speed, and their effects on weld strength and microstructure. Several case studies are presented that examined how varying process parameters impacted tensile strength when welding materials like aluminum alloys, steel, and polymers. The conclusion states that FSW is well-suited for welding aluminum alloys and efforts are ongoing to weld higher-temperature materials and dissimilar metals using this technique.
Experimental Analysis to Optimize the Process Parameter of Friction Stir Weld...IRJET Journal
This document presents an experimental analysis to optimize the process parameters of friction stir welding (FSW) for aluminum alloy AA6082. The researchers conducted FSW experiments using different combinations of tool rotation speed, tilt angle, and welding speed. Tensile strength results of the welded joints were analyzed using Taguchi methods and particle swarm optimization to determine the optimal parameter settings. Specifically, a central composite design was used with three factors at three levels each to evaluate the effects of the FSW parameters on tensile strength. The goal of the research was to develop relationships between FSW variables and tensile/yield strength and identify the best settings for maximizing strength in single and multi-pass welds of AA6082 aluminum alloy.
This document discusses an experimental study that evaluated the electro-mechanical properties of friction stir welded aluminum/copper bimetallic lap joints. Aluminum and copper plates were joined using friction stir welding and their mechanical and electrical properties were tested by varying parameters like rotational speed, welding speed, and tool tilting angle. Eight experiments were conducted according to a design matrix and the resulting joints were tested for tensile shear strength. The maximum tensile shear strength obtained was 70 MPa. Hardness was found to be uniform throughout the joints and electrical resistance was negligible under manufacturing conditions.
An Experimental Investigation on Mechanical Properties of Friction Stir Weldi...IRJET Journal
The document presents an experimental investigation on the mechanical properties of friction stir welding of aluminum alloy 6061-T6 and brass IS319 using EN19 tools with circular and taper profiles. Friction stir welding is a solid-state joining process that generates heat through friction between the rotating tool and workpieces.
The experiment was conducted on a milling machine using EN19 tools with circular and taper profiles to weld aluminum and brass plates. The welded joints were tested for tensile strength, yield strength, and hardness. The taper profile tool achieved a tensile strength of 108.5 N/mm2, yield strength of 76.05 N/mm2, and Vickers hardness of 51.73 HV. The circular
Optimizing the process parameters of friction stir butt welded joint on alumi...eSAT Publishing House
1) The document discusses optimizing the process parameters of friction stir butt welding on aluminum alloy AA6061-T6. Experiments were conducted using an L9 orthogonal Taguchi design to evaluate the effects of tool rotational speed, welding feed rate, and pin diameter on tensile strength, hardness, and ductility.
2) Tensile strength, hardness, and elongation measurements were made on the welded joints produced under each experimental condition. Signal-to-noise ratios were calculated from the data to analyze the effects of the parameters on the properties.
3) Statistical analysis using Minitab found that tool rotational speed had the greatest influence on tensile strength and hardness, while pin diameter most influenced ductility.
Study and Analysis of the Fatigue Behaviour of Friction Stir Butt Welded Dis...IRJET Journal
1) The study analyzed the tensile strength and fatigue behavior of friction stir butt welded dissimilar aluminum alloys AA6082 and AA5754.
2) Fatigue tests showed the dissimilar welds had lower tensile strength and fatigue strength than the base materials AA6082 and AA5754, but comparable strength to AA5754.
3) The fatigue performance of the AA6082 and AA5754 friction stir welded joints showed a shallower stress-life (S-N) curve with improved fatigue performance at lower stress ranges.
IRJET- Examination of Hardness Values for Ti-6Al-4V Welded Specimens and Micr...IRJET Journal
This document examines the hardness values and microstructural characterization of welded Ti-6Al-4V specimens. Hardness tests were conducted on different zones of welded specimens with different weld bead shapes. The fusion zone and heat-affected zone showed higher hardness than the base metal. Tensile tests revealed that specimens failed at the weld with a yield strength of 820 MPa and ultimate tensile strength of 890 MPa. Fractured surfaces were analyzed using scanning electron microscopy to understand failure modes. SEM images showed ductile failure with dimples in the base metal and no cracks in the welded region.
IRJET - Characteristics of Butt Joint Produced by Friction Stir Welding ProcessIRJET Journal
The document discusses characteristics of butt joints produced using friction stir welding (FSW) of aluminum alloys. It investigates the effects of various FSW process parameters on the mechanical properties and microstructure of the welded joints. Specifically, it examines rotational speed, transverse speed, and tool geometry. Joints of aluminum alloy AA5083 were welded and tested in tension, hardness, impact, and corrosion to analyze properties. The results showed that process parameters significantly affected the weld strength and microstructure. Defect-free joints with optimal mechanical properties could be produced using appropriate FSW conditions.
IRJET- Study of Loading Conditions for Three Plate Lap Welded Specimen us...IRJET Journal
The document summarizes several studies that used finite element analysis (FEA) tools like ANSYS to simulate welding processes. It discusses how researchers have used FEA to study the effects of different welding parameters, material properties, and loading conditions. Specifically, it describes studies that used FEA to analyze: (1) residual stresses in butt-welded steel plates and box sections; (2) temperature distribution during laser-arc hybrid welding of aluminum to steel; (3) microstructure formation during explosive welding of aluminum to iron.
Similar to Various Parameter Effects on Friction Stir Welding- A Review (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.