Aero engine rotor burst evaluation is one of the most important problems to be taken care off, whenever it comes to designing a turbo machinery disc. The consequences of a fiasco can be intense, since the disc disintegrates into multiple pieces and they are hurled away in all the possible direction at high speeds. Due to high thermo-mechanical loading conditions the disc is subjected to varying degrees of temperature from bore to rim. However, the centrifugal force dominates in the disc which ranges from 85%-90% and the rest can be treated as thermal and gas loads. The challenge lies at designing a disc for off design conditions with their varying loads and duty cycles. In present work evaluation of safety margins and low-cycle fatigue (LCF) estimation of an aero engine disc through classical methods and blending the terminologies with simulation engineering to arrive at a probable interpretation of number of duty cycles is carried out. The methodology compares the fatigue parameters involved in evaluation of disc life. The design tool closely connects the flight certification requirement, namely Flight Readiness Certification, Federal Aviation Administration and European Aviation Safety Agency the regulating agencies for safety in air transportation vehicles. Speed regulations through API and MIL handbook for material specification using finite element analysis approach.
The document discusses various methods for testing and measuring elements of screw threads, including ISO and BSW threads. It describes how to measure the major diameter, minor diameter, mean diameter, and thread angle of a screw using tools like micrometers, prisms, and an optical comparator. The three-wire method for measuring pitch diameter is also explained in detail, including formulas to calculate measurements based on wire size.
Formula SAE is a challenging student engineering competition organized by SAE where students design, build, and race small formula-style vehicles. Students conceive, design, fabricate, and compete with a formula car of their own creation over the course of a year. The competition consists of static design events and dynamic driving events held annually. The IIT Madras Formula SAE team has registered for the 2008 competition in Japan where they will showcase their formula car and be evaluated on its design and performance.
Evolution of CAD/CAM and CIM, computers and workstation, elements of interactive
graphics, input/ out put display, storage devices in CAD, – networking of CAD systems -
2D Graphics: line drawing algorithms, DDA line algorithm – circle drawing,
bressnham`s circle drawing algorithm– 2D Transformation: translation, rotation, scaling,
reflection – clipping -3D Graphics (basic only).
siwes technical report in mechanical engineering, automobile workshopjsunny155
my name is sanusi jibrin a student in bayero university kano in the department of mechanical engineering. this report gives the overview of the siwes program and also its background.
i hope this might help you in one way or the other
This Presentation has been presented in the Choice 2010 counseling event for IIT/NIT aspirants. In this presentation, Mr.P.Venugopal ( Director, Defence Research and Development Laboratories, India) explains the potential of Mechanical Engineering and various career opportunities that are available for students.
This curriculum vitae summarizes Ahmat Ridwan's personal and professional details in 3 sentences. He has over 10 years of experience as a mechanical technician specializing in rotating equipment maintenance and overhauls. His work history includes projects at PT Arun LNG, PT Imeco-GE Consortium at BP Tangguh LNG, PT Gas Generator Jakarta, and PT Pupuk Iskandar Muda. He holds qualifications in areas like gas turbine, steam turbine, pump, and compressor overhauls and repairs.
Fundamentals of Modern Manufacturing 4th edition by GrooverKlaryza Belen
This document provides a preface for the 4th edition of the textbook "Fundamentals of Modern Manufacturing: Materials, Processes, and Systems" by Mikell P. Groover. The preface outlines the book's approach of providing a balanced and quantitative coverage of engineering materials, manufacturing processes, and production systems. It describes several updates and additions made for the 4th edition, including new sections on specialty materials, polymer recycling, advanced machining processes, and integrated manufacturing systems. The preface concludes by listing additional features of the textbook and support materials available to instructors.
The document discusses various methods for testing and measuring elements of screw threads, including ISO and BSW threads. It describes how to measure the major diameter, minor diameter, mean diameter, and thread angle of a screw using tools like micrometers, prisms, and an optical comparator. The three-wire method for measuring pitch diameter is also explained in detail, including formulas to calculate measurements based on wire size.
Formula SAE is a challenging student engineering competition organized by SAE where students design, build, and race small formula-style vehicles. Students conceive, design, fabricate, and compete with a formula car of their own creation over the course of a year. The competition consists of static design events and dynamic driving events held annually. The IIT Madras Formula SAE team has registered for the 2008 competition in Japan where they will showcase their formula car and be evaluated on its design and performance.
Evolution of CAD/CAM and CIM, computers and workstation, elements of interactive
graphics, input/ out put display, storage devices in CAD, – networking of CAD systems -
2D Graphics: line drawing algorithms, DDA line algorithm – circle drawing,
bressnham`s circle drawing algorithm– 2D Transformation: translation, rotation, scaling,
reflection – clipping -3D Graphics (basic only).
siwes technical report in mechanical engineering, automobile workshopjsunny155
my name is sanusi jibrin a student in bayero university kano in the department of mechanical engineering. this report gives the overview of the siwes program and also its background.
i hope this might help you in one way or the other
This Presentation has been presented in the Choice 2010 counseling event for IIT/NIT aspirants. In this presentation, Mr.P.Venugopal ( Director, Defence Research and Development Laboratories, India) explains the potential of Mechanical Engineering and various career opportunities that are available for students.
This curriculum vitae summarizes Ahmat Ridwan's personal and professional details in 3 sentences. He has over 10 years of experience as a mechanical technician specializing in rotating equipment maintenance and overhauls. His work history includes projects at PT Arun LNG, PT Imeco-GE Consortium at BP Tangguh LNG, PT Gas Generator Jakarta, and PT Pupuk Iskandar Muda. He holds qualifications in areas like gas turbine, steam turbine, pump, and compressor overhauls and repairs.
Fundamentals of Modern Manufacturing 4th edition by GrooverKlaryza Belen
This document provides a preface for the 4th edition of the textbook "Fundamentals of Modern Manufacturing: Materials, Processes, and Systems" by Mikell P. Groover. The preface outlines the book's approach of providing a balanced and quantitative coverage of engineering materials, manufacturing processes, and production systems. It describes several updates and additions made for the 4th edition, including new sections on specialty materials, polymer recycling, advanced machining processes, and integrated manufacturing systems. The preface concludes by listing additional features of the textbook and support materials available to instructors.
This document is a cover letter and resume submitted by Mohd Hazim Bin Che Hassan for an engineering job placement. He has 5 years of work experience in oil and gas companies, including as a Field Service Engineer and Planning Engineer. He holds a Bachelor's degree in Mechanical Engineering and various safety and technical certifications. Hazim is looking to apply his skills and experience maintaining equipment like sand monitoring systems, actuators, and valves to further his career at the company.
The document provides details about the author's 2-month industrial training at BASREC, a ship repair and engineering company in Bahrain. The author observed maintenance of ships, including docking, engine room components, hull blasting and painting. The author also learned skills like valve and pump overhaul, lathe machining, and bending aluminum. The training covered various departments at BASREC and provided hands-on experience in mechanical engineering fields.
Dokumen tersebut membahas tentang tanda kekasaran permukaan dan tanda pengerjaan pada gambar teknik mesin dasar. Terdapat penjelasan tentang nilai kekasaran permukaan, simbol-simbol yang digunakan untuk menunjukkan nilai kekasaran dan arah bekas pengerjaan, serta contoh soal latihan dan sumber bahan ajar.
Uncertainty of Coordinate Measuring MachinesHassan Habib
The presentation was delivered in the presentation of a conference paper at ICAYS (International Conference in Aerospace for Young Scientists) at Beihang University, Beijing, China. The topic takes into account the critical factors that effect the CMM measurements. The presentation represents the way of Guide to Expression of Uncertainty Measurement (GUM). All the formulas taken for the calculation are based on literature review.
This document discusses electro jet drilling (EJD), a non-traditional micro drilling technique. It describes how EJD works by impinging an electrolyte jet onto a workpiece to electrolytically dissolve material. Experiments were conducted to understand how applied voltage, electrolyte concentration, and feed rate impact material removal rate, radial overcut, and hole taper. Optimal conditions were found to be 325V, 17.5% electrolyte concentration, and 0.5mm/min feed rate, providing maximum material removal with minimal overcut and taper. The document concludes EJD can drill micro holes in hard materials in a cost-effective way.
This seminar report discusses the effect of machining parameters on tool life. It begins with an introduction to cutting tools, tool wear, and factors that affect tool life. The report then reviews literature on how cutting speed, feed rate, and depth of cut impact tool wear and life. The objectives are to study how these machining parameters influence tool wear and life. The expected outcomes are that tool life decreases with increasing feed rate, cutting speed, and depth of cut. The conclusion is that machining parameters must be optimized to select values that result in maximum tool life and minimum tool wear.
Industrial Attachment Program (IAP) ReportAkshit Arora
Project report for IAP, project developed for automating the Industrial Attachment Program of Dept. of Mechanical Engineering at Thapar University. Developed under the guidance of Dr. Ajay Batish (Professor at Mechanical Engg. Dept, TU)
Mechanical Technology Grade 12 Chapter 6 Terminology Of MachinesFuture Managers
This slide show accompanies the learner guide "Mechanical Technology Grade 10" by Charles Goodwin, Andre Lategan & Daniel Meyer, published by Future Managers Pty Ltd. For more information visit our website www.futuremanagers.net
This document provides an overview of various advanced machining processes, including chemical milling, photochemical blanking, electrochemical machining, electrical discharge machining, laser beam machining, electron beam machining, plasma arc cutting, water jet machining, abrasive water jet machining, and abrasive jet machining. Each process is described along with considerations for its application. These non-traditional machining methods allow complex shapes to be cut in hard materials and offer alternatives to conventional processes for difficult-to-machine materials.
Manufacturing processes 20 me33p lab manual c 20THANMAY JS
Mechanical Engineering
Semester III
20ME33P
Manufacturing Processes
Laboratory Manual
Produce patterns, molds, and casting of a given component drawing and estimate the cost of casting.
Demonstrate forging operation for a given component drawing and estimate the cost of forging.
Prepare sheet-metal drawing, demonstrate sheet metal operation and estimate the costs of Sheet-metal operation.
The document compares the properties of involute gear profiles and cycloidal gear profiles. Involute gear profiles have a constant pressure angle but weaker teeth. They are easier to manufacture due to their convex surface but experience more interference and wear. Cycloidal gear profiles have a varying pressure angle of zero at the pitch point and stronger teeth but are more difficult to manufacture. They do not experience interference and have less wear.
1) Se investigaron las causas del fallo prematuro de resortes de múltiples hojas (ballestas) usados en autobuses en Venezuela. 2) El estudio encontró que el fallo ocurrió por fatiga mecánica, iniciándose en el agujero central donde se concentran las máximas tensiones. 3) Varios factores como un diseño deficiente, baja calidad del material y defectos de fabricación contribuyeron a la rotura prematura de las ballestas.
Mesin gerinda adalah alat yang digunakan untuk mengasah dan memotong benda kerja dengan permukaan yang halus dan presisi tinggi. Terdapat beberapa jenis mesin gerinda seperti mesin gerinda permukaan, silinder, dan alat potong yang masing-masing memiliki fungsi khusus sesuai dengan bentuk benda kerja. Komponen utama mesin gerinda adalah batu gerinda dan perlengkapan penyangga benda kerja.
This document describes a student project on the study of cutting tools and jig fixtures. It discusses tool design methods, desirable properties of tool materials, tool geometry, chip formation, tool failure and factors affecting tool life. The project also explains the importance of jigs and fixtures for holding workpieces and increasing accuracy. It details the manufacturing of a hand vice to study machining operations and factors that influence tool life, such as tool material selection, cutting parameters, heat treatment and coatings. The goal of the project is to understand how to increase tool life for different machining processes.
Contoh laporan pratikum proses produksi marsyah18009
Teks tersebut merupakan bagian pendahuluan dari laporan praktikum proses produksi 1 yang membahas tentang:
1. Latar belakang proses permesinan dan mesin bubut
2. Tujuan dan manfaat dari praktikum proses produksi 1 yaitu mempelajari proses pembubutan menggunakan mesin bubut.
3. Teori dasar proses produksi, proses permesinan, dan prinsip kerja mesin bubut.
The document discusses important mechanical engineering software tools used for design, analysis, programming, and instrumentation. It outlines CAD software for design like CATIA and SolidWorks. CAE software for analysis like Ansys and Fluent are discussed. Programming languages like MATLAB, C++, and Python are also listed. LabView is provided as an example of instrumentation software. Specific uses of these tools in fields like automotive and aerospace engineering are highlighted. The benefits of 3D CAD for designers and engineers include avoiding mistakes, saving time, gaining precision, and improving client satisfaction.
This document provides information about geometric dimensioning and tolerancing (GD&T). It defines GD&T as a method for defining the geometry of a part beyond simple tolerance dimensions. Feature control frames modify a part's geometry and include the geometric tolerance symbol, datum, and modifiers. Geometric characteristic symbols indicate the type of tolerance such as flatness, circularity, or perpendicularity. Datums establish the reference frame for measurements and include primary, secondary, and tertiary datums indicated on drawings.
This paper presents the life estimation of the diffuser structure. Literature shows that the welds are the source of failure in case of welded structure; hence the estimation of its life is very critical. There are two kinds of methods for life estimation stress life approach and strain life approach which have been validated for simple problems. Stress life approach was identified as appropriate for life estimation of the variable diffuser. There are papers indicating the methodology for life estimation using commercial software for life prediction. Here, Optistruct- Hyper-Works for pre-processing and solver and Hyper-View- Hyper-Works for post processing has been used for the indeterminate structure, complex loading and boundary condition. The mathematical model subjected to the variable pressure contours for a particular Mach No., with the gimbal joint boundary condition at the test section end and the roller support at the other end. In this paper stress and fatigue analysis of the variable diffuser has been carried out and life of the variable diffuser has been estimated.
Review: Composite Flywheel for High Speed ApplicationAM Publications
Flywheel is a device to smoothen the cyclic fluctuation of speed change when delivering constant output
power from the engine. It has no influence on the mean speed of the prime mover. It has no influence on the varying
load demand on the prime mover or the delivered power from the prime mover. In the forgoing discussion, it is
observed that turning moment diagrams for the cycle show period during which torque is in excess of the mean torque
responsible for the constant power output and also periods during which the torque is less than the mean torque. Thus
the speed of the flywheel would increase during period of excess of torque during the cycle and the speed will fall
during the period of the deficit torque during the cycle. Thus a flywheel stores energy and releases energy during the
cycle without affecting mean energy output. Thus a properly designed flywheel has to ensure the cyclic fluctuations of
speed within prescribed limits preferably as small as possible. The main objective of our project is to reduce weight of
automobile by using composite material. In this Project Work taking Flywheel as an Automobile component and
applying FEA analysis using ANSYS to optimize weight and strength of flywheel. Here Performing Analysis on metal
flywheel, carbon fiber flywheel and composite i.e. metal and carbon fiber flywheel. By using ANSYS stresses obtained
& compared with analytical calculations, also weight is compared. Composite flywheel made from steel rim & carbon
fiber body will be safe for automobile applications like F1 car. From analysis & analytical results composite flywheel
for automobile can be selected.
This document is a cover letter and resume submitted by Mohd Hazim Bin Che Hassan for an engineering job placement. He has 5 years of work experience in oil and gas companies, including as a Field Service Engineer and Planning Engineer. He holds a Bachelor's degree in Mechanical Engineering and various safety and technical certifications. Hazim is looking to apply his skills and experience maintaining equipment like sand monitoring systems, actuators, and valves to further his career at the company.
The document provides details about the author's 2-month industrial training at BASREC, a ship repair and engineering company in Bahrain. The author observed maintenance of ships, including docking, engine room components, hull blasting and painting. The author also learned skills like valve and pump overhaul, lathe machining, and bending aluminum. The training covered various departments at BASREC and provided hands-on experience in mechanical engineering fields.
Dokumen tersebut membahas tentang tanda kekasaran permukaan dan tanda pengerjaan pada gambar teknik mesin dasar. Terdapat penjelasan tentang nilai kekasaran permukaan, simbol-simbol yang digunakan untuk menunjukkan nilai kekasaran dan arah bekas pengerjaan, serta contoh soal latihan dan sumber bahan ajar.
Uncertainty of Coordinate Measuring MachinesHassan Habib
The presentation was delivered in the presentation of a conference paper at ICAYS (International Conference in Aerospace for Young Scientists) at Beihang University, Beijing, China. The topic takes into account the critical factors that effect the CMM measurements. The presentation represents the way of Guide to Expression of Uncertainty Measurement (GUM). All the formulas taken for the calculation are based on literature review.
This document discusses electro jet drilling (EJD), a non-traditional micro drilling technique. It describes how EJD works by impinging an electrolyte jet onto a workpiece to electrolytically dissolve material. Experiments were conducted to understand how applied voltage, electrolyte concentration, and feed rate impact material removal rate, radial overcut, and hole taper. Optimal conditions were found to be 325V, 17.5% electrolyte concentration, and 0.5mm/min feed rate, providing maximum material removal with minimal overcut and taper. The document concludes EJD can drill micro holes in hard materials in a cost-effective way.
This seminar report discusses the effect of machining parameters on tool life. It begins with an introduction to cutting tools, tool wear, and factors that affect tool life. The report then reviews literature on how cutting speed, feed rate, and depth of cut impact tool wear and life. The objectives are to study how these machining parameters influence tool wear and life. The expected outcomes are that tool life decreases with increasing feed rate, cutting speed, and depth of cut. The conclusion is that machining parameters must be optimized to select values that result in maximum tool life and minimum tool wear.
Industrial Attachment Program (IAP) ReportAkshit Arora
Project report for IAP, project developed for automating the Industrial Attachment Program of Dept. of Mechanical Engineering at Thapar University. Developed under the guidance of Dr. Ajay Batish (Professor at Mechanical Engg. Dept, TU)
Mechanical Technology Grade 12 Chapter 6 Terminology Of MachinesFuture Managers
This slide show accompanies the learner guide "Mechanical Technology Grade 10" by Charles Goodwin, Andre Lategan & Daniel Meyer, published by Future Managers Pty Ltd. For more information visit our website www.futuremanagers.net
This document provides an overview of various advanced machining processes, including chemical milling, photochemical blanking, electrochemical machining, electrical discharge machining, laser beam machining, electron beam machining, plasma arc cutting, water jet machining, abrasive water jet machining, and abrasive jet machining. Each process is described along with considerations for its application. These non-traditional machining methods allow complex shapes to be cut in hard materials and offer alternatives to conventional processes for difficult-to-machine materials.
Manufacturing processes 20 me33p lab manual c 20THANMAY JS
Mechanical Engineering
Semester III
20ME33P
Manufacturing Processes
Laboratory Manual
Produce patterns, molds, and casting of a given component drawing and estimate the cost of casting.
Demonstrate forging operation for a given component drawing and estimate the cost of forging.
Prepare sheet-metal drawing, demonstrate sheet metal operation and estimate the costs of Sheet-metal operation.
The document compares the properties of involute gear profiles and cycloidal gear profiles. Involute gear profiles have a constant pressure angle but weaker teeth. They are easier to manufacture due to their convex surface but experience more interference and wear. Cycloidal gear profiles have a varying pressure angle of zero at the pitch point and stronger teeth but are more difficult to manufacture. They do not experience interference and have less wear.
1) Se investigaron las causas del fallo prematuro de resortes de múltiples hojas (ballestas) usados en autobuses en Venezuela. 2) El estudio encontró que el fallo ocurrió por fatiga mecánica, iniciándose en el agujero central donde se concentran las máximas tensiones. 3) Varios factores como un diseño deficiente, baja calidad del material y defectos de fabricación contribuyeron a la rotura prematura de las ballestas.
Mesin gerinda adalah alat yang digunakan untuk mengasah dan memotong benda kerja dengan permukaan yang halus dan presisi tinggi. Terdapat beberapa jenis mesin gerinda seperti mesin gerinda permukaan, silinder, dan alat potong yang masing-masing memiliki fungsi khusus sesuai dengan bentuk benda kerja. Komponen utama mesin gerinda adalah batu gerinda dan perlengkapan penyangga benda kerja.
This document describes a student project on the study of cutting tools and jig fixtures. It discusses tool design methods, desirable properties of tool materials, tool geometry, chip formation, tool failure and factors affecting tool life. The project also explains the importance of jigs and fixtures for holding workpieces and increasing accuracy. It details the manufacturing of a hand vice to study machining operations and factors that influence tool life, such as tool material selection, cutting parameters, heat treatment and coatings. The goal of the project is to understand how to increase tool life for different machining processes.
Contoh laporan pratikum proses produksi marsyah18009
Teks tersebut merupakan bagian pendahuluan dari laporan praktikum proses produksi 1 yang membahas tentang:
1. Latar belakang proses permesinan dan mesin bubut
2. Tujuan dan manfaat dari praktikum proses produksi 1 yaitu mempelajari proses pembubutan menggunakan mesin bubut.
3. Teori dasar proses produksi, proses permesinan, dan prinsip kerja mesin bubut.
The document discusses important mechanical engineering software tools used for design, analysis, programming, and instrumentation. It outlines CAD software for design like CATIA and SolidWorks. CAE software for analysis like Ansys and Fluent are discussed. Programming languages like MATLAB, C++, and Python are also listed. LabView is provided as an example of instrumentation software. Specific uses of these tools in fields like automotive and aerospace engineering are highlighted. The benefits of 3D CAD for designers and engineers include avoiding mistakes, saving time, gaining precision, and improving client satisfaction.
This document provides information about geometric dimensioning and tolerancing (GD&T). It defines GD&T as a method for defining the geometry of a part beyond simple tolerance dimensions. Feature control frames modify a part's geometry and include the geometric tolerance symbol, datum, and modifiers. Geometric characteristic symbols indicate the type of tolerance such as flatness, circularity, or perpendicularity. Datums establish the reference frame for measurements and include primary, secondary, and tertiary datums indicated on drawings.
This paper presents the life estimation of the diffuser structure. Literature shows that the welds are the source of failure in case of welded structure; hence the estimation of its life is very critical. There are two kinds of methods for life estimation stress life approach and strain life approach which have been validated for simple problems. Stress life approach was identified as appropriate for life estimation of the variable diffuser. There are papers indicating the methodology for life estimation using commercial software for life prediction. Here, Optistruct- Hyper-Works for pre-processing and solver and Hyper-View- Hyper-Works for post processing has been used for the indeterminate structure, complex loading and boundary condition. The mathematical model subjected to the variable pressure contours for a particular Mach No., with the gimbal joint boundary condition at the test section end and the roller support at the other end. In this paper stress and fatigue analysis of the variable diffuser has been carried out and life of the variable diffuser has been estimated.
Review: Composite Flywheel for High Speed ApplicationAM Publications
Flywheel is a device to smoothen the cyclic fluctuation of speed change when delivering constant output
power from the engine. It has no influence on the mean speed of the prime mover. It has no influence on the varying
load demand on the prime mover or the delivered power from the prime mover. In the forgoing discussion, it is
observed that turning moment diagrams for the cycle show period during which torque is in excess of the mean torque
responsible for the constant power output and also periods during which the torque is less than the mean torque. Thus
the speed of the flywheel would increase during period of excess of torque during the cycle and the speed will fall
during the period of the deficit torque during the cycle. Thus a flywheel stores energy and releases energy during the
cycle without affecting mean energy output. Thus a properly designed flywheel has to ensure the cyclic fluctuations of
speed within prescribed limits preferably as small as possible. The main objective of our project is to reduce weight of
automobile by using composite material. In this Project Work taking Flywheel as an Automobile component and
applying FEA analysis using ANSYS to optimize weight and strength of flywheel. Here Performing Analysis on metal
flywheel, carbon fiber flywheel and composite i.e. metal and carbon fiber flywheel. By using ANSYS stresses obtained
& compared with analytical calculations, also weight is compared. Composite flywheel made from steel rim & carbon
fiber body will be safe for automobile applications like F1 car. From analysis & analytical results composite flywheel
for automobile can be selected.
IRJET- Aerodynamic Analysis of Aircraft Wings using CFDIRJET Journal
This document discusses computational fluid dynamics (CFD) analysis of aircraft wings using NACA 4412 airfoils at various angles of attack. The study uses ANSYS software to simulate air flow over the airfoil and calculate lift and drag coefficients. The results show that lift increases with angle of attack up to 25 degrees, at which point lift is highest before drag starts to dominate as the airfoil stalls. Contour plots of pressure and velocity are presented for the airfoil at angles of attack of 0, 8, 16, and 20 degrees. The CFD analysis provides insight into airfoil aerodynamic performance without requiring expensive wind tunnel testing.
IRJET- Analysis of Automobile Rim on Strain CriteriaIRJET Journal
This document discusses replacing spot welds with arc welds on automobile steel wheel rims using finite element analysis. The objectives are to improve productivity by reducing welding time compared to spot welding and to analyze stress distribution under various tests. A finite element analysis model of the wheel rim was developed to study stresses under dynamic cornering fatigue testing and influence of tire pressure and vehicle load under radial fatigue testing. Experimental testing will also be conducted and results will be compared to finite element analysis to validate the best combinations of arc weld parameters to both improve productivity and meet strength requirements.
Study and Analysis of Energy Dissipation in Disc BrakesIRJET Journal
This document presents a study on the thermal and structural analysis of disc brakes. A CAD model of a motorcycle disc brake was created and analyzed using finite difference modeling. Temperature distribution, deformation, stress, and contact pressure results were obtained. The material of the disc and topology were changed, and simulations were run to compare results. Changing to an Al-SiC material and adding slots to the disc resulted in better temperature distribution and lower thermal stresses compared to the stock setup. The study provides insights into how material selection and design changes can influence braking performance and component life.
Design and Thermal Analysis of Disc Brake for Minimizing TemperatureIRJET Journal
This document describes a study on the design and thermal analysis of disc brakes to minimize temperature. Different shapes and slot designs were modeled for a disc brake rotor using CATIA software and thermal analysis was performed using ANSYS. The results from static structural and transient thermal analysis for the original design and 5 new designs under various loading conditions are presented and compared. The analysis shows that the new design 5 performs the best with maximum stresses and temperature below the original design, indicating improved thermal conductivity and heat dissipation. This optimized design can help improve brake performance and safety.
Numerical prediction of polyurethane foam filled steel hat Section tubes unde...AM Publications
This paper presents studies of the numerical prediction of the behaviour of polyurethane (PU) foam filled hat section tubes. Experimental results of the foam-filled single-hat and double-hat components tested in an impact testing machine are described. Consistent experimental load displacement curves were generated. FE analyses using LS-DYNA of the impact behaviours predicted are shown to agree favourably with experimental results.
Design Evaluation and Optimization of IC Engine Connecting Rods '“ A Reviewijtsrd
Fatigue analysis and Optimization of connecting rod are the modern trend in automotive engineering industry emphasis on many parameters like total deformation, life, factor of safety, stress biaxiality and fatigue sensitivity. The main scope of this work comprises detailed review on various methods and procedures adopted by different researchers in Fatigue analysis of commercially used Engine Connecting rod. The objective of conducting fatigue analysis varies from each other like Weight reduction, Cost reduction, Shape optimization and fatigue life calculation at varying boundary conditions and loads. Fatigue analysis has a very dominant position in product design and development as more than 50% of the products, structural failures are due to fatigue concept only. The review have emphasized the importance of conducting the fatigue analysis of the connecting rod to identity its critical points, fatigue life and factor of safety etc., for its better performance and life period extension. N. Mohammed Raffic | Dr. K. Ganesh Babu | K. N. Arun Kumar"Design Evaluation and Optimization of IC Engine Connecting Rods “ A Review" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd10814.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/10814/design-evaluation-and-optimization-of-ic-engine-connecting-rods--a-review/n-mohammed-raffic
An Overview of Design and Analysis of Rocker ArmIRJET Journal
This document summarizes research on the design and analysis of rocker arms. It discusses how rocker arms are used to transfer motion from camshafts to engine valves. Finite element analysis is used to model rocker arms and analyze stresses. Different materials are analyzed to reduce stresses and increase durability, including steel, aluminum, composites, and polymers. Studies analyzed stresses on rocker arms made of various materials and identified optimal materials to increase strength while reducing weight. Composite materials showed potential to reduce stresses compared to steel.
This document summarizes test results from simulating loss-of-lubrication conditions for aerospace spur gears. Tests were conducted at NASA's Glenn Research Center using a contact fatigue test facility. Instrumentation was added to measure temperatures during testing, including thermocouples embedded in gear shrouding and on a test gear. Testing was performed at different load levels until gear failure occurred. Higher loads resulted in faster failure times. Testing provides data to validate models of gear temperature and failure during lubrication loss.
IRJET - Vibration Analysis of Disc Brake by using FEA and FFT AnalyzerIRJET Journal
This document summarizes a research paper that analyzed vibration in disc brakes through finite element analysis (FEA) and experimental testing. The researchers created 3D models of a disc brake in different designs and performed modal analysis to evaluate the natural frequencies and mode shapes. They then conducted experimental vibration testing on the physical disc brakes using an FFT analyzer to measure the natural frequencies and compared the results to the FEA analysis. The goal was to optimize the disc brake design by changing the hole shapes to reduce vibrations while maintaining the original natural frequencies through both analytical modeling and experimental validation.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IRJET- Numerical Analysis of Nose Landing Gear SystemIRJET Journal
This document presents a numerical analysis of the nose landing gear system of an aircraft using finite element analysis. It begins with an abstract that outlines the objective to determine stress behavior and displacement of the nose gear during landing. It then describes the modeling process where the nose gear was modeled in CAD software and imported into finite element analysis software for meshing and application of loads and constraints. Key steps of the finite element analysis are described including discretization, deriving element equations, assembling global equations, applying loads/boundaries, and solving for results. Results of the finite element analysis such as stress contours, displacement contours, and natural frequencies are presented and discussed.
Effect of spikes integrated to airfoil at supersonic speedeSAT Journals
Abstract
The objective of this is to analyse the flow field over an aerofoil section integrated with spikes at supersonic speed (Mach number
greater than 1). Use of spike integrated with aerofoil changes the flow characteristics over aerofoil and hence aerodynamic lift
and drag. The experiment consists of flow visualization graphs and measurement of coefficient of aerodynamic drag and lift.
Here we are using different shapes of spike like sharp edge and hemi spherical edge. In this we will compare the flow over
aerofoil with spike and without spike. The flow analysis is done by using Computational fluid dynamics (CFD). CFD is the study
of external flow over a body or internal flow through the body. CFD is aiding aero-dynamist to better understand the flow physics
and in turn to design efficient models. In short, CFD is playing a strong role as a design tool as well as a research tool.
Keywords: NACA 651-412 airfoil, spike, Ansys Fluent, Ansys ICEM CFD, Pressure Coefficient
This document discusses computational fluid dynamics (CFD) analysis of flow over an airfoil integrated with spikes at supersonic speeds. It presents the results of CFD simulations using ANSYS Fluent software to analyze the effect of adding either a sharp spike or hemispherical spike to a NACA 651-412 airfoil at Mach numbers over 1. The study found that the addition of spikes modifies the flow field over the airfoil and changes the aerodynamic lift and drag coefficients. Spikes help reduce problems like higher heating and separation that occur during supersonic flight.
Optimization of Bolted Joints for Aircraft Engine Using Genetic AlgorithmsIJMER
Genetic Algorithms mimic the evolving technique of nature to better fit populations to a certain environment. Despite this technique has proved its adequacy in several fields, its application in Aerospace is still limited, mostly because of the high quantity of acceptability criteria that the design
must pass and the amount of design parameters. The presented paper explores required GA architecture’s adaptations to be applied in highly restricted systems such as those commonly found in Aerospace applications. The proposed GA was applied to the design of an Aircraft Engine’s Axial Casing bolted joint following static strength restrictions as per FAR 33 regulations. The set of Elitism,
interdependent geometric restrictions, Crossing, and Reproduction modules proved the applicability of
the presented multi-objective GA architecture under 14 restrictions for normal, limit and ultimate loads.
As it is described, the conversion is quickly achieved due to the shortage of the search space; therefore a
modified Variable Crossing per Scheme is proposed to expand the diversity of the genome to compensate
the relatively low impact of the Mutation module. Finally, the process and solutions found were compared against the traditional design process, showing the feasibility of this technique in complex applications in terms of quality of the solution and developing time.
Finite element analysis of single cylinder engineLaukik Raut
This paper deals with, the problem occurred in single cylinder engine crank shaft. It consist of static structural
and fatigue analysis of single cylinder engine crank shaft. It identifies and solves the problem by using the
modeling and simulation techniques. The topic was chosen because of increasing interest in higher payloads,
lower weight, higher efficiency and shorter load cycles in crankshaft. The main work was to model the crank
shaft with dimensions and then simulate the crank shaft for static structural and fatigue analysis. The modeling
software used is PRO-E wildfire 4.0 for modeling the crank shaft. The analysis software ANSYS will be used for
structural and fatigue analysis of crank shaft for future work. The material for crank shaft is EN9 and other
alternate materials on which analysis will be done are SAE 1045, SAE 1137, SAE 3140, and Nickel Cast Iron.
The objectives involves modeling and analysis of crank shaft, so as to identify the effect of stresses on crank
shaft, to compare various materials and to provide possible solution.
1) The document describes a fatigue analysis of a 2000 liter pressure vessel using finite element analysis software ANSYS and PV Elite.
2) A 3D model of the pressure vessel was created and meshed in ANSYS, with internal pressure and nozzle loads applied based on ASME code. Stresses and fatigue life were analyzed.
3) The results from ANSYS were validated by modeling the same vessel geometry and loads in PV Elite software. The damage factors from both analyses were found to be similar and below code allowable limits, validating the design.
IRJET- Finite Element Simulation of Pressurized FluidIRJET Journal
1) The document describes a finite element simulation of a pressurized fluid using the Smoothed Particle Hydrodynamics (SPH) method in ABAQUS software.
2) It specifically models a typical landing gear shock absorber system for a re-entry vehicle undergoing a simulated landing with 3g acceleration.
3) The analysis determines the optimal orifice diameter and fluid to air volume ratio for maximum shock absorption based on the SPH simulation results. An orifice diameter of 10mm showed the best performance.
Computational Fluid Dynamics (CFD) - Approach to study Incompressible Boundar...AM Publications
In turbulence models we create mathematical models that describe the flow properties of a flowing fluid. A turbulence model is a computational procedure to close the system of mean flow equations and so that a more or less wide variety of flow problems can be calculated. However, far less precision has been achieved in creating a mathematical model that approximates the physical behavior of turbulent flows. Reynolds stress model is used to get the flow behavior and compared with the theoretical solution and the inferences are drawn.
Similar to Evaluation of Over-speed, Burst Margin and Estimation of Low-cycle Fatigue Life of an Aero Engine Disc (20)
DEVELOPMENT OF TODDLER FAMILY CADRE TRAINING BASED ON ANDROID APPLICATIONS IN...AM Publications
Toddler family cadre is a community members work voluntarily in fostering and providing information to parents of toddlers about how to properly care for children. Toddler Family cadre desperately need training to increase their skills. There are still a few Toddler family cadres who get training so that the knowledge and skills of parents and other family members in developing toddlers' growth through physical stimulation, motoric intelligence, emotional and social economy as well as possible are still lacking. The purpose of this study is to develop an Android- assisted Toddler family cadre training model in Demak. This research is research in tian research and development. The research location was in Demak Regency. Toddler family cadres became the object of this research. Development of Toddler family cadre training models assisted by Android in Demak is feasible to be used as an effort to improve Toddler Family cadres' capabilities.
TESTING OF COMPOSITE ON DROP-WEIGHT IMPACT TESTING AND DAMAGE IDENTIFICATION ...AM Publications
In recent years the use of composite materials in structural components has become increasingly common in a wide range of engineering applications. Composite materials offer numerous advantages over more conventional materials because of their superior specific properties, but a serious obstacle to a more widespread use of these materials is their high sensitivity to localized impact loading. This paper presents an experimental study to assess the impact response of drop weight impact tests on fiber reinforced polymer composites with deferent load and damage identification of composite using Non-destructive testing techniques ultrasonic testing (UT) C scan. In the study includes checking the strength of the specimen, plotting of graphs between the height and the impact energy obtained and tabulating the results after conducting the various functional tests.
THE USE OF FRACTAL GEOMETRY IN TILING MOTIF DESIGNAM Publications
In this paper I will present the use of fractal geometry to design tile motifs. A fractal is a geometric figure that combines the several characteristics among others: its parts have the same form as the whole, fragmented, and formation by iteration. The concept of fractals has been spread over all fields of sciences, technology, and art. This paper aims to provide an algorithm to creating motifs of tile algorithm for create the tile motif consists of base, iteration, coloration and duplication. In order to help the reader better understand the algorithm, I will present some script using Matlab. We describe a mathematically based algorithm that can fill a spatial region with sequence of randomly placed which may be transformed copies of one motif or several motifs. By using this algorithm, I can produce thousand variety of aesthetically pleasing tile motifs, of which we show a number of examples.
TWO-DIMENSIONAL INVERSION FINITE ELEMENT MODELING OF MAGNETOTELLURIC DATA: CA...AM Publications
Two-dimensional resistivity analysis of magnetotelluric data has been done at “Z” geothermal area which is located in southern part of Indonesia. The objective is to understand subsurface structure beneath reasearch area based on 2-D modeling of magnetotelluric data. The inversion finite element method were used for numerical simulations which requires discretization on the boundary of the modeling domain. The modeling results of magnetotelluric data shows relativity structure dissemination: 0-10 ohm.m in a thickness of 1 km (Clay Cap), 10-100 ohm.m with 1-2 km depth respectively (reservoir zone), and on a scale of 100-1000 ohm.m in a depth of 2-3 km (heat source zone). The result of relativity structure can be used to delineate an area with geothermal prospect around 12 km2.
USING THE GENETIC ALGORITHM TO OPTIMIZE LASER WELDING PARAMETERS FOR MARTENSI...AM Publications
This document presents an optimization of laser welding parameters for martensitic stainless steel using a genetic algorithm. The algorithm aims to minimize the difference between the actual and desired weld size (width and depth) by optimizing laser power, welding speed, and fiber diameter. The genetic algorithm was run 10 times with a population of 30 over 200 iterations each time. The results showed errors between optimized and experimental values of less than 5% for the parameters. The study demonstrates that genetic algorithms can effectively optimize laser welding parameters to achieve a preset weld size.
ANALYSIS AND DESIGN E-MARKETPLACE FOR MICRO, SMALL AND MEDIUM ENTERPRISESAM Publications
The Ministry of Cooperatives and Small and Medium Enterprises launched in 2018 the number of Micro, Small and Medium Enterprises (MSMEs) in Indonesia as many as 58.97 million people. It is predicted that the number of MSMEs players in 2019 will amount to 59.2 million. This shows that the Indonesian people have made changes in the field of family economics which initially as consumptive are now productive. The community prefers to carry out activities that can increase family income. Future MSMEs remain the mainstay of the national economy. In accordance with the government roadmap, in 2020 e-commerce transactions are predicted to reach Rp1,300 trillion or equivalent to USD130 billion. According to data from the Central Statistics Agency (BPS), the contribution of MSMEs to Indonesia's Gross Domestic Product (GDP) reached 61.41%, with the number of MSMEs reaching almost 60 million units. However, only around 8% or 3.79 million of the 59.2 million MSMEs players have used online platforms to market their products. Based on the above problems, researchers conducted research on the analysis and display of E-Marketplace for MSMEs in Indonesia. The type of research used is action research. The object of research is MSMEs which are under the Office of Industry and Trade of Sragen Regency. The method of data collection is by techniques: (1) interview, (2) documentation (3) observation, (4) literature study. The researcher uses the waterfall method in developing the system. The research team has successfully analyzed the E-Market place according to the results of data collection. The research team has succeeded in designing the E-Marketplace for MSMEs. E-Marketplace designed can be used by admin, MSME and user. Admin is in charge of managing E-Marketplace and has full access rights. MSMEs can register online and manage their products in E-Marketplace. Users or buyers can search data in E-Marketplace as desired. To make transactions, users can interact directly with MSMEs according to the data provided in E-Marketplace. E-Marketplace can be used for marketing together MSMEs products. This e-marketplace can be accessed at www.umkmonline.com
REMOTE SENSING AND GEOGRAPHIC INFORMATION SYSTEMS AM Publications
Remote sensing technology's increasing accessibility helps us observe research and learn about our globe in ways we could only imagine a generation ago. Guides to profound knowledge of historical, conceptual and practical uses of remote sensing which is increasing GIS technology. This paper will go briefly through remote sensing benefits, history, technology and the GIS and remote sensing integration and their applications. Remote sensing (RS) is used in mapping the predicted and actual species and dominates the ecosystem canopy.
EVALUATE THE STRAIN ENERGY ERROR FOR THE LASER WELD BY THE H-REFINEMENT OF TH...AM Publications
Currently, the finite element method (FEM) is still one of the useful tools in numerical simulation for technical problems. With this method, a continuum model presented by a certain number of elements with a simple approximation field causes the presence of discretization error in solutions. This paper considers the butt weld by laser which subjected the tension for AISI 1018 steel highness 8 mm. The aim of the study is to use the h-refinement of the FEM in estimation the strain energy error for the laser weld mentioned. The results show that the stability of the h-refinement shown by the value of the relative error of the strain energy is quite small, specifically; FEM is less than 5.7% and extra is no more than 3.7%.
HMM APPLICATION IN ISOLATED WORD SPEECH RECOGNITIONAM Publications
Speech recognition is always being an all-time trendy topic for discussion and also for researches and we see a major application in our life. This paper provides the work done on the application of Hidden Markov model to implement isolated word speech recognition on MATLAB and to develop and train the system for set of self-selective words for specific user (user dependent) to get maximum efficiency in word recognition system. Which uses the forward and Baum-welch algorithm and fitting Gaussian of the Baum-welch algorithm for all the iteration perform. We use a sample of 7 alphabets which are recorded in 15 different ways giving total of 105 word to use for training with each word with 15 variations. This system can be used in real world in system security using voice security system and mainly for children and impaired people.
PEDESTRIAN DETECTION IN LOW RESOLUTION VIDEOS USING A MULTI-FRAME HOG-BASED D...AM Publications
Detecting pedestrians in low resolution videos is a challenging task, due to the small size of pedestrians in the images and the limited information. In practical outdoor surveillance scenarios the pedestrian size is usually small. Existing state-of-the-art pedestrian detection methods that use histogram of oriented gradient (HOG) features have poor performance in this problem domain. To compensate for the lack of information in a single frame, we propose a novel detection method that recognizes pedestrians in a short sequence of frames. Namely, we take the single-frame HOG-based detector and extend it to multiple frames. Our detector is applied to regions containing potential moving objects. In the case of video taken from a moving camera on an aerial platform, video stabilization is first performed to register the frames. A classifier is then applied to features extracted from spatio-temporal volumes surrounding the potential moving objects. On challenging stationary and aerial video datasets, our detection accuracy outperforms several state-of-the-art algorithms.
The aim of this paper is to help the blind people to identify and catch the public transport vehicles with the help of Light Fidelity technology. It is a Navigation aid. When the bus arrives at the bus stand, transmitter in the bus transmits the light signals and receiver in the stick, receives the light signals and a sound signal is generated through the speaker present in the stick. The sound message contains the bus number and the destination of the bus. In addition to this, if the person is absconded or lost, details of the location will be sent to his/her family members by pressing a button. This is made possible with the help of Global System for Mobile (GSM). Finally, presence of water can be detected along the blind person’s path, with the help of water sensors.
EFFECT OF SILICON - RUBBER (SR) SHEETS AS AN ALTERNATIVE FILTER ON HIGH AND L...AM Publications
A digital radiography delivers a radiation dose to patients; therefore it poses potential risk to the patients. One effort to reduce dose is carried out using a radiation filter, e.g. Silicone Rubber (SR) sheet. The purpose of this research was to determine the impact of the SR sheet on the high contrast objects (HCO) and the low contrast objects (LCO). The dose reduction was determined from attenuation x-rays before and after using the SR sheet. Assessment of HCO and LCO was observed from CDR TOR phantom at tube voltage of 48 kVp and tube current of 8 mAs. The physical parameter to assess image quality was the Signal to Noise Ratio (SNR) value in LCO. The maximum x-ray attenuation using the SR sheet is 48.82%. The visibility of the HCO remains the same, namely 16 objects; however the LCO slighly decreases from 14 objects to 13 objects after using the SR sheet. The SNR value decreases with an average value of 15.17%.Therefore, the SR sheet as a alternative filter has no effect on the HCO and has realtively little effect on the LCO. Thus, the SR sheet potentially is used for radiation protection in patients, especially on examinations that do not require low contrast resolution.
UTILIZATION OF IMMUNIZATION SERVICES AMONG CHILDREN UNDER FIVE YEARS OF AGE I...AM Publications
Immunization is the key strategy to curb communicable diseases which are the number one killer of children under five. Immunization prevents mortalities of approximating three million children under five annually. This study aimed to assess utilization of immunization services among children under five of age in Kirinyaga County, Kenya.
REPRESENTATION OF THE BLOCK DATA ENCRYPTION ALGORITHM IN AN ANALYTICAL FORM F...AM Publications
The article presents the study of cryptographic transformations of the Kuznyechik algorithm in relation to differential analysis and the translation of their representations into a more convenient form for cryptanalysis. A simplification of the type of transformations of the algorithm to algebraic the form, in which cryptanalysis software will be more effective. Since the description of the algorithm in the analytical form allows for 16 cycles of execution of the shift register with linear feedback, each of which will be carried out 16 operations of multiplication and 15 operations of addition, reduced to 16 multiplying and 15 the operations of addition. The result is an algebraic form of a linear transformation (from a shift register with linear feedback to the multiplication of the matrix in a finite field). In the future, the algebraic type of transformation can be used to effectively carry out differential cryptanalysis.
Optical character recognition (OCR) is process of classification of optical patterns contained in a digital image. The process of OCR Recognition involves several steps including pre-processing, segmentation, feature extraction, classification. Pre-processing is for done the basic operation on input image like noise reduction which remove the noisy signal from image. Segmentation stage for segment the given image into line by line and segment each character from segmented line. Future extraction calculates the characteristics of character. A Radial Basis Function Neural Network (RBFNN) is used to classification contains the database and does the comparison.
Surveillance refers to the task of observing a scene, often for lengthy periods in search of particular objects or particular behaviour. This task has many applications, foremost among them is security (monitoring for undesirable behaviour such as theft or vandalism), but increasing numbers of others in areas such as agriculture also exist. Historically, closed circuit TV (CCTV) surveillance has been mundane and labour Intensive, involving personnel scanning multiple screens, but the advent of reasonably priced fast hardware means that automatic surveillance is becoming a realistic task to attempt in real time. Several attempts at this are underway.
SIMULATION OF ATMOSPHERIC POLLUTANTS DISPERSION IN AN URBAN ENVIRONMENTAM Publications
Interest in air pollution investigation of urban environment due to existence of industrial and commercial activities along with vehicular emission and existence of buildings and streets which setup natural barrier for pollutant dispersion in the urban environment has increased. The air pollution modelling is a multidisciplinary subject when the entire cities are taken under consideration where urban planning and geometries are complex which needs a large software packages to be developed like Operational Street Pollution Model (OSPM), California Line Source model (CALINE series) etc. On overviewing various works it can be summarized that the air pollutant dispersion in urban street canyons and all linked phenomenon such as wind flow, pollutant concentrations, temperature distribution etc. generally depend on wind speed and direction, building heights and density, road width, source and intensity of air pollution, meteorological variables like temperature, humidity etc. A unique and surprising case is observed every time on numerous combinations of these factors. The main aim of this study is to simulate the atmospheric pollutant dispersion for given pollutant like carbon monoxide, sulphur dioxide and nitrogen dioxide and given atmospheric conditions like wind speed and direction. Computational Fluid Dynamics (CFD) simulation for analysing the atmospheric pollutant dispersion is done after natural airflow analysis. Volume rendering is done for variables such as phase 2 volume fraction and velocity with resolution as 250 pixels per inch and transparency as 20%. It can be observed that all the three pollutant namely nitrogen dioxide, sulphur dioxide and carbon monoxide the phase 2 volume fraction changes from 0 to 1. The wind velocity changes from 3.395×10-13 m/s to 1.692×102 m/s. The dispersion of pollutants follow the sequence Sulphur dioxide>Carbon monoxide>Nitrogen dioxide.
PREPARATION AND EVALUATION OF WOOL KERATIN BASED CHITOSAN NANOFIBERS FOR AIR ...AM Publications
In this article, we have extracted keratin from deccani wool waste and prepared the wool keratin based Chitosan nanofibers by electrospinning technique. The prepared nanofibers mat were prepared with different weight percent ratio like 1wt.%, 3wt.% and 5wt.% with respect to polymer i.e Chitosan. The physicochemical and filtration properties of wool keratin based Chitosan nanofibers were studied. Wool keratin based Chitosan nanofibers were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (FESEM). The filtration efficiency of keratin Chitosan nanofibers were investigated through DOP test and heavy metal removal capacity of evaluated through Atomic absorption spectroscopy. FTIR results were showed that Keratin gets compatible with Chitosan. XRD patterns revealed keratin was in crystalline nature and increase the crystalline nature of Chitosan nanofibers. FESEM images showed that uniform nanofibers generation with average fiber diameter 80nm. Nanofibers filtration efficiency against a particulate matter in air was obtained more than 99.53% and excellent property of removal of heavy metal.
ANALYSIS ON LOAD BALANCING ALGORITHMS IMPLEMENTATION ON CLOUD COMPUTING ENVIR...AM Publications
Cloud computing means storing and accessing data and programs over the Internet instead of your computer's hard drive. The cloud is just a metaphor for the Internet. The elements involved in cloud computing are clients, data center and distributed server. One of the main problems in cloud computing is load balancing. Balancing the load means to distribute the workload among several nodes evenly so that no single node will be overloaded. Load can be of any type that is it can be CPU load, memory capacity or network load. In this paper we presented an architecture of load balancing and algorithm which will further improve the load balancing problem by minimizing the response time. In this paper, we have proposed the enhanced version of existing regulated load balancing approach for cloud computing by comping the Randomization and greedy load balancing algorithm. To check the performance of proposed approach, we have used the cloud analyst simulator (Cloud Analyst). Through simulation analysis, it has been found that proposed improved version of regulated load balancing approach has shown better performance in terms of cost, response time and data processing time.
A MODEL BASED APPROACH FOR IMPLEMENTING WLAN SECURITY AM Publications
This paper presents various security features and configurations commonly implemented in WLANs and their aggregated security levels and then proposes a model that enables implementation and evaluation of WLAN security
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...PriyankaKilaniya
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
Software Engineering and Project Management - Software Testing + Agile Method...Prakhyath Rai
Software Testing: A Strategic Approach to Software Testing, Strategic Issues, Test Strategies for Conventional Software, Test Strategies for Object -Oriented Software, Validation Testing, System Testing, The Art of Debugging.
Agile Methodology: Before Agile – Waterfall, Agile Development.
Mechatronics is a multidisciplinary field that refers to the skill sets needed in the contemporary, advanced automated manufacturing industry. At the intersection of mechanics, electronics, and computing, mechatronics specialists create simpler, smarter systems. Mechatronics is an essential foundation for the expected growth in automation and manufacturing.
Mechatronics deals with robotics, control systems, and electro-mechanical systems.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Home security is of paramount importance in today's world, where we rely more on technology, home
security is crucial. Using technology to make homes safer and easier to control from anywhere is
important. Home security is important for the occupant’s safety. In this paper, we came up with a low cost,
AI based model home security system. The system has a user-friendly interface, allowing users to start
model training and face detection with simple keyboard commands. Our goal is to introduce an innovative
home security system using facial recognition technology. Unlike traditional systems, this system trains
and saves images of friends and family members. The system scans this folder to recognize familiar faces
and provides real-time monitoring. If an unfamiliar face is detected, it promptly sends an email alert,
ensuring a proactive response to potential security threats.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELijaia
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Accident detection system project report.pdfKamal Acharya
The Rapid growth of technology and infrastructure has made our lives easier. The
advent of technology has also increased the traffic hazards and the road accidents take place
frequently which causes huge loss of life and property because of the poor emergency facilities.
Many lives could have been saved if emergency service could get accident information and
reach in time. Our project will provide an optimum solution to this draw back. A piezo electric
sensor can be used as a crash or rollover detector of the vehicle during and after a crash. With
signals from a piezo electric sensor, a severe accident can be recognized. According to this
project when a vehicle meets with an accident immediately piezo electric sensor will detect the
signal or if a car rolls over. Then with the help of GSM module and GPS module, the location
will be sent to the emergency contact. Then after conforming the location necessary action will
be taken. If the person meets with a small accident or if there is no serious threat to anyone’s
life, then the alert message can be terminated by the driver by a switch provided in order to
avoid wasting the valuable time of the medical rescue team.