1) The document analyzes a failure of stage separation between the flight stage (FS) and upper stage (US) caused by failure of two bolted disconnect mechanisms (BDM).
2) Finite element models were developed to simulate the recontact trajectory and nozzle buckling. Analysis showed plastic buckling, bending, and degradation of the nozzle.
3) Combined thermal and pressure loads from hot gas flow were estimated to cut off and melt the buckled part of the nozzle within 0.3 seconds. Thrust estimates from simulations found changes up to 1.5% due to the fault, making conditions unsustainable.
This document discusses different types of footings used in reinforced concrete design, including isolated spread footings, wall footings, combined footings, pile caps, mat foundations, and column footings. It covers topics such as bearing pressure under footings, design of eccentrically loaded footings, moment and shear in wall footings, critical sections for shear and moment in column footings, and transfer of forces at the base of a column. Two example problems are included to demonstrate the design of a wall footing and square column footing.
This document describes a finite element analysis of a rolling process. It provides background on rolling and finite element analysis. It then details the initial basic simulation model created with a 2D deformable plate and analytical rigid roller. Next, it describes a sheet simulation model provided by industry with specific geometry and material properties. The sheet model is used to analyze von mises stress, pressure, and equivalent plastic strain distributions. Finally, it examines the variation of residual stresses with changes to coefficient of friction, plate feed velocity, and roller velocity to determine optimal parameters that minimize residual stress. Future work is needed to address excessive deformation observed in the shell model.
This presentation is for mechanical engineering/ civil engineering students to help them understand the different type of destructive mechanical testing of materials. The tensile testing, hardness, impact test procedures are explained in detail.
The presentation outlines the classification of missiles and various Indian and worldwide available, in use missile. The presentation is in a pictorial format.
1) The document analyzes a failure of stage separation between the flight stage (FS) and upper stage (US) caused by failure of two bolted disconnect mechanisms (BDM).
2) Finite element models were developed to simulate the recontact trajectory and nozzle buckling. Analysis showed plastic buckling, bending, and degradation of the nozzle.
3) Combined thermal and pressure loads from hot gas flow were estimated to cut off and melt the buckled part of the nozzle within 0.3 seconds. Thrust estimates from simulations found changes up to 1.5% due to the fault, making conditions unsustainable.
This document discusses different types of footings used in reinforced concrete design, including isolated spread footings, wall footings, combined footings, pile caps, mat foundations, and column footings. It covers topics such as bearing pressure under footings, design of eccentrically loaded footings, moment and shear in wall footings, critical sections for shear and moment in column footings, and transfer of forces at the base of a column. Two example problems are included to demonstrate the design of a wall footing and square column footing.
This document describes a finite element analysis of a rolling process. It provides background on rolling and finite element analysis. It then details the initial basic simulation model created with a 2D deformable plate and analytical rigid roller. Next, it describes a sheet simulation model provided by industry with specific geometry and material properties. The sheet model is used to analyze von mises stress, pressure, and equivalent plastic strain distributions. Finally, it examines the variation of residual stresses with changes to coefficient of friction, plate feed velocity, and roller velocity to determine optimal parameters that minimize residual stress. Future work is needed to address excessive deformation observed in the shell model.
This presentation is for mechanical engineering/ civil engineering students to help them understand the different type of destructive mechanical testing of materials. The tensile testing, hardness, impact test procedures are explained in detail.
The presentation outlines the classification of missiles and various Indian and worldwide available, in use missile. The presentation is in a pictorial format.
The presentation details the outline, working and parts of thermal power plants. The thermodynamic cycle is also expalined in deatail. For more presentations and reports visit www.mechieprojects.com
This document provides a summary of a dissertation submitted for a Bachelor of Engineering Honours degree. The dissertation involves computational fluid dynamics (CFD) analysis of aerodynamic forces on a rear spoiler for a car model in 2D. The document includes acknowledgments, a declaration by the author, a table of contents, and 6 chapters that describe the background, literature review, methodology, numerical setup, CFD results and analysis, and conclusions. The CFD analysis is conducted using ANSYS software to simulate airflow around baseline models of a car with and without different rear spoiler configurations.
Metal Joining Processes: Welding, Riveting, Bolting, Brazing, SolderingJJ Technical Solutions
The presentation is a mechanical engineering presentation on the basics of metal joining processes. The basics of metal joining processes such as welding, riveting is explained in detail.
Inertia relief analysis of a suspension shock linkage in AnsysRahul Shedage
1. The document describes performing an inertia relief analysis in ANSYS Workbench on a suspension linkage model to account for the effects of mass and inertia when a vertical load exceeds the structure's weight.
2. Key steps of the analysis include importing the geometry, meshing, applying nodal forces and displacements as boundary conditions, setting inertia relief to "On" in the analysis settings, solving, and reviewing equivalent stress and total deformation results.
3. Inertia relief calculates accelerations to counterbalance applied loads and can only be used for linear static structural analyses under certain conditions like having sufficient constraints to prevent rigid body motions.
The document summarizes a computational fluid dynamics study of flow over clean and loaded wings using ANSYS Fluent. It describes simulating flow over an airfoil at angles from 0-20 degrees both with and without a missile model attached. The results show that boundary layer separation begins around 15 degrees for the clean wing and occurs at a lower angle for the loaded wing. However, issues with meshing prevented analysis of the loaded wing case. Increasing angle of attack was found to increase lift forces until stall occurred due to vortex shedding beyond 20 degrees.
Transient thermal analysis of a clutch plate in AnsysRahul Shedage
This document describes how to perform a transient thermal analysis of a clutch plate using finite element analysis software. The analysis involves:
1) Setting up the project, defining engineering data like thermal conductivity, and importing the clutch plate geometry file.
2) Generating a mesh on the clutch plate model.
3) Applying loads like convection and a temperature profile on surfaces, and boundary conditions.
4) Solving the model to determine the temperature distribution and total heat flux over time.
5) Viewing the results of the transient thermal analysis like temperature, total heat flux.
This document lists 45 potential project topics related to mechanical engineering and the use of software like ANSYS, CATIA, and PRO-E. The topics focus on areas like optimization, design, failure analysis, heat transfer, fluid dynamics and more. They involve applying finite element analysis and computational fluid dynamics to problems in industries like automotive, manufacturing, pumps, and consumer products.
2015-2016 B.E. / M.E. Mechanical ProjectsVenkatesan S
This document lists mechanical engineering project titles and descriptions for projects in various areas including material handling systems, lathe systems, air heaters, pneumatic systems, accident alert systems, escalators, drilling, milling, welding, composites, die/mold making, and finite element analysis. Many projects involve experimentation and optimization of parameters for various materials and processes. Contact information is provided for the organization offering the projects.
DESIGN PERFORMANCE INVESTIGATION OF MODIFIED PARSEC AIRFOIL REPRESENTATION US...Masahiro Kanazaki
This document summarizes a study investigating the design performance of modified PARSEC airfoil representation methods using genetic algorithms. The study compares the original PARSEC method to two proposed modifications for representing airfoils. The optimizations aim to maximize airfoil thickness and minimize drag coefficient for transonic and low Reynolds number airfoil design problems. Computational fluid dynamics simulations are performed using structured grids and turbulence models. Results show that the modified PARSEC methods improve the aerodynamic performance around the leading edge compared to the original method.
Ansys temperature distribution and heat flux furnace jan 10 2013 updatedCharlton Inao
This document discusses performing a finite element analysis (FEA) thermal analysis of a furnace to determine temperature distribution and heat flux. It provides details on the furnace dimensions, material properties of the concrete and brick walls, convection heat transfer coefficients, and temperatures of the furnace interior and surrounding air. The steps outlined include defining element types, material thermal conductivities, modeling the furnace geometry, meshing, and assigning material numbers to the concrete and brick walls in the FEA software before running the thermal analysis.
Steel pipes are hollow tubes used for transporting liquids and gases. They have been used for thousands of years, originally made from reeds and lead. Modern steel pipe manufacturing involves converting steel ingots into blooms or slabs through rolling, then using these to form seamless or welded pipes on a continuous production line. Quality control measures like x-ray gauges ensure pipes meet thickness specifications.
The presentation details the various components, thermodynamics cycle of a thermal power plant. the complete presentation can be downloaded from www.mechieprojects.com
Solving 3-D Printing Design Problems with ANSYS CFD for UAV ProjectAnsys
Researchers at the University of Sheffield’s Advanced Manufacturing Research Centre wanted to determine the optimized desired cruise conditions of different 3-D printed UAVs. They turned to ANSYS software to create, analyze and optimize the design.
Thermal reliability faces critical challenges from emerging FinFET-based designs. As designs transition from planar MOS to FinFET transistors, current density increases by 25% and that combined with lower thermal conductivity substrate and 3-D narrow fin structure, local heat gets trapped resulting in thermal-aware EM issues. This presentation introduces Sentinel-TI™, a thermal integrity platform and demonstrates how Chip Thermal Model (CTM™) based power-thermal convergence and interconnect-driven methodology help address the thermal reliability challenges associated with these design. Learn more on our website: https://bit.ly/1sh7I8p, https://bit.ly/1CW3FRT, https://bit.ly/1qk5Juj and (https://bit.ly/1rtrGat)
This document outlines the aim, literature review, problem formulation, and initial study of a project on the thermostructural design of a four-stroke internal combustion (IC) engine. The aim is to understand the effects of piston shape and fin parameters on structural strength and heat transfer rate using finite element analysis. An existing 150cc engine will be modeled and optimized. The literature review covers piston and fin design considerations as well as materials. The problem formulation describes modeling pistons and fins in CAD and analyzing them using FEA. The initial study models flat, concave, and convex pistons as well as different fin configurations to analyze stress and heat transfer.
This document provides information about the Strength of Materials CIE 102 course for first year B.E. degree students. It includes a list of 10 topics that will be covered in the course, such as simple stress and strain, shearing force and bending moment, and stability of columns. It also lists several reference books for the course and provides an overview of concepts that will be discussed in the first chapter, including stress, strain, stress-strain diagrams, and ductile vs brittle materials.
Okay, here are the step-by-step workings:
a) Plot the Mohr's circle with σx = 20 kPa, σy = 30 kPa, τxy = 10 kPa
b) Determine the pole
c) Draw a line through the pole at 30° from the horizontal
d) It intersects the circle at σa = 26 kPa, τa = 8.66 kPa
e) The major and minor principal stresses are the intersections of the circle with the σ axes:
σ1 = 30 kPa
σ3 = 20 kPa
f) The major principal plane is parallel to the σy axis. The minor principal plane is parallel to the σ
The presentation details the outline, working and parts of thermal power plants. The thermodynamic cycle is also expalined in deatail. For more presentations and reports visit www.mechieprojects.com
This document provides a summary of a dissertation submitted for a Bachelor of Engineering Honours degree. The dissertation involves computational fluid dynamics (CFD) analysis of aerodynamic forces on a rear spoiler for a car model in 2D. The document includes acknowledgments, a declaration by the author, a table of contents, and 6 chapters that describe the background, literature review, methodology, numerical setup, CFD results and analysis, and conclusions. The CFD analysis is conducted using ANSYS software to simulate airflow around baseline models of a car with and without different rear spoiler configurations.
Metal Joining Processes: Welding, Riveting, Bolting, Brazing, SolderingJJ Technical Solutions
The presentation is a mechanical engineering presentation on the basics of metal joining processes. The basics of metal joining processes such as welding, riveting is explained in detail.
Inertia relief analysis of a suspension shock linkage in AnsysRahul Shedage
1. The document describes performing an inertia relief analysis in ANSYS Workbench on a suspension linkage model to account for the effects of mass and inertia when a vertical load exceeds the structure's weight.
2. Key steps of the analysis include importing the geometry, meshing, applying nodal forces and displacements as boundary conditions, setting inertia relief to "On" in the analysis settings, solving, and reviewing equivalent stress and total deformation results.
3. Inertia relief calculates accelerations to counterbalance applied loads and can only be used for linear static structural analyses under certain conditions like having sufficient constraints to prevent rigid body motions.
The document summarizes a computational fluid dynamics study of flow over clean and loaded wings using ANSYS Fluent. It describes simulating flow over an airfoil at angles from 0-20 degrees both with and without a missile model attached. The results show that boundary layer separation begins around 15 degrees for the clean wing and occurs at a lower angle for the loaded wing. However, issues with meshing prevented analysis of the loaded wing case. Increasing angle of attack was found to increase lift forces until stall occurred due to vortex shedding beyond 20 degrees.
Transient thermal analysis of a clutch plate in AnsysRahul Shedage
This document describes how to perform a transient thermal analysis of a clutch plate using finite element analysis software. The analysis involves:
1) Setting up the project, defining engineering data like thermal conductivity, and importing the clutch plate geometry file.
2) Generating a mesh on the clutch plate model.
3) Applying loads like convection and a temperature profile on surfaces, and boundary conditions.
4) Solving the model to determine the temperature distribution and total heat flux over time.
5) Viewing the results of the transient thermal analysis like temperature, total heat flux.
This document lists 45 potential project topics related to mechanical engineering and the use of software like ANSYS, CATIA, and PRO-E. The topics focus on areas like optimization, design, failure analysis, heat transfer, fluid dynamics and more. They involve applying finite element analysis and computational fluid dynamics to problems in industries like automotive, manufacturing, pumps, and consumer products.
2015-2016 B.E. / M.E. Mechanical ProjectsVenkatesan S
This document lists mechanical engineering project titles and descriptions for projects in various areas including material handling systems, lathe systems, air heaters, pneumatic systems, accident alert systems, escalators, drilling, milling, welding, composites, die/mold making, and finite element analysis. Many projects involve experimentation and optimization of parameters for various materials and processes. Contact information is provided for the organization offering the projects.
DESIGN PERFORMANCE INVESTIGATION OF MODIFIED PARSEC AIRFOIL REPRESENTATION US...Masahiro Kanazaki
This document summarizes a study investigating the design performance of modified PARSEC airfoil representation methods using genetic algorithms. The study compares the original PARSEC method to two proposed modifications for representing airfoils. The optimizations aim to maximize airfoil thickness and minimize drag coefficient for transonic and low Reynolds number airfoil design problems. Computational fluid dynamics simulations are performed using structured grids and turbulence models. Results show that the modified PARSEC methods improve the aerodynamic performance around the leading edge compared to the original method.
Ansys temperature distribution and heat flux furnace jan 10 2013 updatedCharlton Inao
This document discusses performing a finite element analysis (FEA) thermal analysis of a furnace to determine temperature distribution and heat flux. It provides details on the furnace dimensions, material properties of the concrete and brick walls, convection heat transfer coefficients, and temperatures of the furnace interior and surrounding air. The steps outlined include defining element types, material thermal conductivities, modeling the furnace geometry, meshing, and assigning material numbers to the concrete and brick walls in the FEA software before running the thermal analysis.
Steel pipes are hollow tubes used for transporting liquids and gases. They have been used for thousands of years, originally made from reeds and lead. Modern steel pipe manufacturing involves converting steel ingots into blooms or slabs through rolling, then using these to form seamless or welded pipes on a continuous production line. Quality control measures like x-ray gauges ensure pipes meet thickness specifications.
The presentation details the various components, thermodynamics cycle of a thermal power plant. the complete presentation can be downloaded from www.mechieprojects.com
Solving 3-D Printing Design Problems with ANSYS CFD for UAV ProjectAnsys
Researchers at the University of Sheffield’s Advanced Manufacturing Research Centre wanted to determine the optimized desired cruise conditions of different 3-D printed UAVs. They turned to ANSYS software to create, analyze and optimize the design.
Thermal reliability faces critical challenges from emerging FinFET-based designs. As designs transition from planar MOS to FinFET transistors, current density increases by 25% and that combined with lower thermal conductivity substrate and 3-D narrow fin structure, local heat gets trapped resulting in thermal-aware EM issues. This presentation introduces Sentinel-TI™, a thermal integrity platform and demonstrates how Chip Thermal Model (CTM™) based power-thermal convergence and interconnect-driven methodology help address the thermal reliability challenges associated with these design. Learn more on our website: https://bit.ly/1sh7I8p, https://bit.ly/1CW3FRT, https://bit.ly/1qk5Juj and (https://bit.ly/1rtrGat)
This document outlines the aim, literature review, problem formulation, and initial study of a project on the thermostructural design of a four-stroke internal combustion (IC) engine. The aim is to understand the effects of piston shape and fin parameters on structural strength and heat transfer rate using finite element analysis. An existing 150cc engine will be modeled and optimized. The literature review covers piston and fin design considerations as well as materials. The problem formulation describes modeling pistons and fins in CAD and analyzing them using FEA. The initial study models flat, concave, and convex pistons as well as different fin configurations to analyze stress and heat transfer.
This document provides information about the Strength of Materials CIE 102 course for first year B.E. degree students. It includes a list of 10 topics that will be covered in the course, such as simple stress and strain, shearing force and bending moment, and stability of columns. It also lists several reference books for the course and provides an overview of concepts that will be discussed in the first chapter, including stress, strain, stress-strain diagrams, and ductile vs brittle materials.
Okay, here are the step-by-step workings:
a) Plot the Mohr's circle with σx = 20 kPa, σy = 30 kPa, τxy = 10 kPa
b) Determine the pole
c) Draw a line through the pole at 30° from the horizontal
d) It intersects the circle at σa = 26 kPa, τa = 8.66 kPa
e) The major and minor principal stresses are the intersections of the circle with the σ axes:
σ1 = 30 kPa
σ3 = 20 kPa
f) The major principal plane is parallel to the σy axis. The minor principal plane is parallel to the σ
This document discusses different types of stresses including normal stress, shear stress, bearing stress, and stresses in thin-walled pressure vessels. It provides definitions and formulas for calculating normal stress, shear stress, and bearing stress. For thin-walled pressure vessels, it explains that the tangential stress is twice the longitudinal stress and provides the formulas for calculating each. It also includes example problems calculating stresses in cylindrical and spherical pressure vessels.
This document provides an introduction and overview of the concepts of stress and stress analysis from the textbook "Mechanics of Materials". It discusses stress, axial loading, shear stress, eccentric loading, bearing stress, and provides examples of calculating normal stress, shear stress, and bearing stress. The document also summarizes an example problem involving determining stresses in members and connections of a structural system subjected to an applied load.
This document provides an overview of retaining wall design and theory. It discusses different types of retaining walls, including vertical walls, battered walls, vaulted walls, and walls with buttresses or counterforts. It also examines the key factors that influence stability, such as the distribution of pressure on joints, failure from overturning, crushing or sliding, and the magnitude and direction of pressure from retained earth or water. Design considerations like material strengths, soil bearing capacities, and wind and water pressures are also covered. The document aims to serve as a practical guide for students and engineers on retaining wall design principles.
This document provides an overview of the concepts of stress that will be covered in Chapter 1 of the textbook "Mechanics of Materials". It begins with the objectives of studying mechanics of materials and defining stress and deformation. It then reviews concepts from statics like free body diagrams and force equilibrium. It introduces the different types of stresses - normal stress, shear stress, bearing stress - and provides examples of how to calculate each. It discusses stress under general load conditions and the state of stress. The goal is to analyze and design structures to determine stresses and ensure safety under loads.
The document discusses buckling of columns under axial compression. It describes:
1) Different buckling theories including elastic buckling, inelastic buckling using tangent modulus theory and reduced modulus theory. Shanley's theory accounts for the effect of transverse displacement.
2) Factors affecting buckling strength including end conditions, initial crookedness, and residual stresses. Effective length accounts for end restraint.
3) Local buckling of thin plate elements can reduce the column's strength before its calculated buckling strength is reached. Flange and web buckling must be prevented.
The document discusses the design and erection of column base plates. It covers types of base plates for different load cases including axial compression, tension, and combined axial and moment loads. Key topics covered include base plate and anchor rod materials, design for concrete crushing and bending, anchor rod design, and erection procedures. Diagrams illustrate critical sections and design equations for different limit states. Construction tolerances and OSHA standards for base plate design are also summarized.
Modelling Stress Path and Fracture Pressure Hysteresis for CO2 Storage in Depleted Reservoirs - presentation by Thomas Lynch of the University of Leeds at the UKCCSRC meeting Monitoring of the deep subsurface, 23 October 2014
This powerpoint presentation deals mainly about bearing stress, its concept and its applications.
Members:
BARIENTOS, Lei Anne
MARTIREZ, Wilbur
MORIONES, Jan Ebenezer
NERI, Laiza Paulene
Sir Romeo Alastre - MEC32/A1
1. Stress is defined as force per unit area and can be calculated using the formula stress = force/area. The main types of stress are axial/normal stress, shear stress, and bearing stress.
2. Strain is the ratio of deformation to original length and is calculated using the formula strain = change in length/original length. Hooke's law states that stress is proportional to strain within the elastic limit defined by a material's Young's modulus.
3. Additional concepts covered include thin-walled pressure vessels, Poisson's ratio, thermal deformation, and stress-strain diagrams. Worked examples are provided to demonstrate calculating stresses, strains, deformations and other mechanical properties.
In this section the concept of stress will be introduced, and this will be applied to components that are in a state of tension, compression, and shear. Strain measurement methods will also be briefly discussed.
Shear stress acts parallel to the surface on which it acts and is produced by a force parallel to that surface. Normal stress acts perpendicular to the surface and is produced by a perpendicular force. Shear stress is calculated by dividing the applied shear force by the cross-sectional area parallel to the force. In an example, a 1-inch diameter bolt experiencing a 4,000 lb force has a shear stress of 5,096 psi.
This document discusses concepts related to the design of concrete beams including:
1. It introduces concepts like bending, shear, tension and compression as they relate to beam design.
2. It provides formulas for calculating reactions, shear forces, and bending moments in simply supported beams under different loading conditions.
3. It explains concepts like the neutral axis, stress blocks, and strain diagrams that are important to beam design.
4. It discusses factors that influence the strength of beams like the moment of inertia and reinforcement ratio.
5. It compares working stress and limit state methods of design.
This document provides information on reinforced concrete design including:
- Concrete and steel properties such as modulus of elasticity and grades/strengths of reinforcing bars.
- Minimum concrete cover requirements for reinforcement.
- Load factors and combinations for ultimate strength design.
- Flexural design procedures for reinforced concrete beams including assumptions, stress/strain diagrams, and analysis for cases where steel yields or does not yield.
- Requirements for reinforcement spacing, minimum member thicknesses, and ductility.
4 pure bending- Mechanics of Materials - 4th - BeerNhan Tran
This chapter discusses pure bending of structural members. Pure bending occurs when equal and opposite couples or bending moments act on a member. The chapter covers bending deformations and strains, stress due to bending calculated using elastic flexure formulas, section properties that influence bending such as moment of inertia, and bending of composite members made of multiple materials. Examples are provided to demonstrate calculating bending stresses in reinforced concrete beams.
Design of column base plates anchor boltKhaled Eid
This document discusses the design of column base plates and steel anchorage to concrete. It covers base plate materials and design for different load cases including axial, moment, and shear loads. It also discusses anchor rod types, materials, and design for tension and shear loading based on calculations of the steel and concrete breakout strengths according to building codes.
Stress Ratio Effects in Fatigue of Lost Foam Aluminum Alloy 356 Dave Palmer, P.E.
Lost foam casting is a highly versatile metalcasting process that offers significant benefits in terms of design flexibility, energy consumption, and environmental impact. In the present work, the fatigue behavior of lost foam cast aluminum alloy 356, in conditions T6 and T7, was investigated, under both zero and non-zero mean stress conditions, with either as-cast or machined surface finish. Scanning electron microscopy was used to identify and measure the defect from which fatigue fracture initiated. Based on the results, the applicability of nine different fatigue mean stress equations was compared. The widely-used Goodman equation was found to be highly non-conservative, while the Stulen, Topper-Sandor, and Walker equations performed reasonably well. Each of these three equations includes a material-dependent term for stress ratio sensitivity. The stress ratio sensitivity was found to be affected by heat treatment, with the T6 condition having greater sensitivity than the T7 condition. The surface condition (as-cast vs. machined) did not significantly affect the stress ratio sensitivity. The fatigue life of as-cast specimens was found to be approximately 60 – 70% lower than that of machined specimens at the same equivalent stress. This reduction could not be attributed to defect size alone, and may be due to the greater frequency of oxide films near the as-cast surface. Directions for future work, including improved testing methods and some possible methods of improving the properties of lost foam castings, are discussed.
Similar to Stresses in Flat Plates due to Presence of Circular Hole (20)
A presentation on non-conventional energy resources i.e. biomass. The energy obtained from biomass can be used to produce biogas which in turn can be used to produce electricity
A seminar presentation for major or minor project for BTech/MTech students on design of pressure vessels using composite materials. for complete presentation log on to www.mechieprojects.com
A seminar presentation on performance of turbochargers in engines. A minor/ major project presentation for B.Tech/MTech students. for more seminar presentations log on to www.mechieprojects.com
A seminar presentation on hydrogen fuel cells and its application in vehicles. A topic that can be presented in BTech & MTech seminars. for more seminar presentations log on to www.mechieprojects.com
SEMINAR TOPIC IN MECHANICAL ENGINEERING ON FUEL CELLS. SHORT AND BRIEF PRESENTATION ON FUEL CELLS. The presentation consists for preview till conclusion and is meant for minor projects submission by engineering students.
The slides prepared to aid the engineering students to prepare the project presentation on topic of Rocket Fuels. The solid rocket propulsion system is explained in detail. We acknowledge the various sources from where the presentation has been made and without whom the presentation would not have been possible.
The presentation outlines the classification of missiles and various Indian and worldwide available, in use missile. The presentation is in a pictorial format.
This document outlines the aim, literature review, problem formulation, and initial study of a project on the thermostructural design of a four-stroke internal combustion (IC) engine. The aim is to understand the effects of piston shape and fin parameters on structural strength and heat transfer rate using finite element analysis. An existing 150cc engine will be modeled and optimized. The literature review covers piston and fin design considerations as well as materials. The problem formulation describes modeling pistons and fins in CAD and analyzing them using FEA. The initial study models flat, concave, and convex pistons as well as different fin configurations to analyze stress and heat transfer.
Description of flow through a convergent-divergent nozzle foe different conditions of upstream and downstream. Mathematical Formulations is described in the slides.
The flow across an airfoil is studied for different angle of attack. The CFD analysis results are documented and studied for different angle of attack using fluent & gambit.
The term “Forging” is applied to processes in which a piece of metal is worked in a machine to the desired shape by plastic deformation of the starting stock. The energy that promotes deformation is applied by a hammer, press, up-setter or ring roller, either alone or in combination. The shape is imparted by the tools that contact the work piece and by careful control of the deformation process. A forging is produced in three distinct phases: stock preparation in the form of blooms, billets, bar or ingots; plastic deformation of the metal component to rough, close tolerance or net shape in one of the forging processes; and appropriate secondary operations
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.
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.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
UNLOCKING HEALTHCARE 4.0: NAVIGATING CRITICAL SUCCESS FACTORS FOR EFFECTIVE I...amsjournal
The Fourth Industrial Revolution is transforming industries, including healthcare, by integrating digital,
physical, and biological technologies. This study examines the integration of 4.0 technologies into
healthcare, identifying success factors and challenges through interviews with 70 stakeholders from 33
countries. Healthcare is evolving significantly, with varied objectives across nations aiming to improve
population health. The study explores stakeholders' perceptions on critical success factors, identifying
challenges such as insufficiently trained personnel, organizational silos, and structural barriers to data
exchange. Facilitators for integration include cost reduction initiatives and interoperability policies.
Technologies like IoT, Big Data, AI, Machine Learning, and robotics enhance diagnostics, treatment
precision, and real-time monitoring, reducing errors and optimizing resource utilization. Automation
improves employee satisfaction and patient care, while Blockchain and telemedicine drive cost reductions.
Successful integration requires skilled professionals and supportive policies, promising efficient resource
use, lower error rates, and accelerated processes, leading to optimized global healthcare outcomes.
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.
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.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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.
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
Stresses in Flat Plates due to Presence of Circular Hole
1. STUDY OF EFFECT OF
CIRCULAR HOLE IN PLATE,
ON
STRESS CONCENTRATION
JJ Technical Solutions
www.mechieprojects.com
2. AIM
• To study the stresses in flat plate with circular hole, for
different pressure loads (P=50 MPa to 450 MPa)
• To study the effect of increase in pressure on the max.
stresses developed.
• To study the stress profile across the circular hole,
through the plate width.
• To tabulate and plot the max. stress generated in the flat
plate with circular hole for different pressure loads.
3. SOLVER: ANSYS 14.0
MESH: STRUCTURAL
SOLID “PLANE 182”;
(QUAD 4 NODE 182)
SOLUTION: STEADY
STATE STRUCTURAL
SOLUTION
MATERIAL: Al. ALLOY
EX: 69E9 Pa
PRXY: 0.3
No. OF ELEMENTS:
244000
BOUNDARY CONDITIONS FOR THE PROBLEM STATEMENT
P =
1. 50 MPa
2. 150 MPa
3. 250 MPa
4. 350 MPa
5. 450 MPa
ϕ0.04
0.2
0.4
P
Fixed Edge
of Plate
Units:
Length: m
Pressure: MPa
Stress: MPa
4. STRUCTURED MESH ELEMENTS IN THE PLATE – SMOOTH MESHING
No. OF ELEMENTS: 244000 (Typ.)
MESH: STRUCTURAL
SOLID “PLANE 182”;
(QUAD 4 NODE 182)
21. Results and Discussions
• The max. stresses generated due to various pressure loads on
the flat plate configuration are:
• The max. stress generated is a
linear function of Pr. Load.
• The stress distribution across the width of the plate is plotted
• The stress distribution across the width of the plate for
different Pr. Loads are plotted and studied.
• The stress distribution around the hole is studied.
Sl.No. Pressure (MPa) Max. Stress (MPa)
1 50 159
2 150 477
3 250 795
4 350 1113
5 450 1431
22. FOR MORE PROJECTS PRESENTATIONS AND
PROJECT REPORTS VISIT
WWW.MECHIEPROJECTS.COM