FEA Research Papers - Academia.edu (original) (raw)

The mechanical characteristics of an external fixator determines the biomechanical environment of a fracture , osteotomy or non-union treated by the external fixator Two main categories of fixators are in popular use. The more... more

The mechanical characteristics of an external fixator determines the biomechanical environment of a fracture , osteotomy or non-union treated by the external fixator Two main categories of fixators are in popular use. The more conventional type (e.g. hybrid), The second type of circular or semicircular fixator e.g., ilizarov) relies on smooth , non threaded Kirschner wires of small diameter (1.5mm to 1.8mm ) under tension to provide the stability needed. Biomechanically, not only are the principles different but also, the biomechanical environment of fractures by the two system is significantly different .Using Ansys Work Bench 10 the Ilizarov, hybrid1and hybrid2 were modeled and it was found that the mechanical properties ilizarov was better than the hybrid fixators.

This work is on the aerodynamics design of the body and frame of a motor tricycle using SolidWorks 2011 modeling system. Its Computational Fluid Dynamics (CFD) feature was used to run simulation tests at a target speed of 150 km/h to... more

This work is on the aerodynamics design of the body and frame of a motor tricycle using SolidWorks 2011 modeling system. Its Computational Fluid Dynamics (CFD) feature was used to run simulation tests at a target speed of 150 km/h to evaluate the aerodynamic performance of the tricycle. Simulation results presented shows that lift and drag forces are diminished considerably and that 170 km/h is the maximum speed to be travelled by the tricycle for a smooth and stable ride. Also, the design reduced drastically the effects of lift and drag forces, increased the tricycle’s stability, traction and performance as well as minimized the weight of the tricycle as a result of the use of high performance to mass ratio materials such as carbon fiber for the body and alloy steel for the frame and rims.

The most transport truck directing course of action is to turn the front wheels utilizing a hand worked controlling wheel which is situated before the Driver. The directing segment, which contain an all inclusive joint which is a piece of... more

The most transport truck directing course of action is to turn the front wheels utilizing a hand worked controlling wheel which is situated before the Driver. The directing segment, which contain an all inclusive joint which is a piece of the collapsible controlling section which is intended to enable it to veer off from a straight line as indicated by the Roadmap. In 4 wheel controlling with three mode activity three guiding modes can be changed as required which helps with stopping at substantial traffic conditions, when arranging territories where short turning sweep is required and in rough terrain Driving. For reducing weight of steering wheel carbon fiber used. The 3D model of steering wheel will be made with the assistance of CATIA V5 Software. The Model Analysis will be carried out using ANSYS19.2 . The experimental Impact Hammer testing will be carried out. Comparative analysis will be carried out between Analysis results and experimental results. Result & Conclusion will b...

A Yoke assembly is a rotating element of transmission drive shafts. Yoke assembly consist of flange Yoke, tube Yoke, cross & needle roller bearing. Fatigue Failure is common mode of the Yoke assembly failure because all components are... more

A Yoke assembly is a rotating element of transmission drive shafts. Yoke assembly consist of flange Yoke, tube Yoke, cross & needle roller bearing. Fatigue Failure is common mode of the Yoke assembly failure because all components are rotate about their respective position. In this study failure analysis of Yoke assembly of transmission drive shaft is carried out. By using finite element method high stress area of existing Yoke find out. Crack initiation takes place at high stress region where value of stress exceeds yield value. By observing failure data the primary observation show that assembly was failed at lug region of flange Yoke. If additional thickness provided on failed area of a existing part, Yoke will complete the desire life. After fabrication of Yoke assembly torque and torsional fatigue testing is carried out to check fatigue life of the component.

Suspension spring is the important component of moving body to absorb shocks and vibration. This paper discusses the finite element analysis of helical suspension spring of rail vehicle to find its fatigue life. Fatigue analysis is... more

Suspension spring is the important component of moving body to absorb shocks and vibration. This paper discusses the finite element analysis of helical suspension spring of rail vehicle to find its fatigue life. Fatigue analysis is carried out using finite element method to investigate the effect of dynamic loading on the failures of suspension spring. This analysis revealed that the suspension spring has finite life and due to which spring failure occurs earlier. To avoid these failures some modifications are suggested in the suspension system and one of them is incorporated by loco shed and it is observed that failures of primary suspension springs are reduced by 88%. This modification is also incorporated by other loco sheds and the results are encouraging.

Using the analytical approaches developed, the cross section of the new fibre composite beam described in the prequels to this paper is designed in order to avert secondary failure modes. A series of specimens have been built and put... more

Using the analytical approaches developed, the cross section of the new fibre composite beam described in the prequels to this paper is designed in order to avert secondary failure modes. A series of specimens have been built and put through a thorough testing regime to establish the performance of the beam. To gain confidence in the analytical models and achieve further understanding of the beam behaviour, a rigorous nonlinear finite element analysis is also presented. It was found that the analytical model agreed relatively well with the experiment and the FE analysis, thus validating the underlying assumptions.

The automobile engine connecting rod is a high volume production critical component. Every vehicle that uses an internal combustion engine requires at least one connecting rod .From the viewpoint of functionality, connecting rods must... more

The automobile engine connecting rod is a high volume production critical component. Every vehicle that uses an internal combustion engine requires at least one connecting rod .From the viewpoint of functionality, connecting rods must have the highest possible rigidity at the lowest weight. The major stress induced in the connecting rod is a combination of axial and bending stresses in operation. The axial stresses are produced due to cylinder gas pressure (compressive only) and the inertia force arising in account of reciprocating action (both tensile as well as compressive), where as bending stresses are caused due to the centrifugal effects. The result of which is, the maximum stresses are developed at the fillet section of the big and the small end.Hence, the paper deals with the stress analysis of connecting rod by Finite Element Method using Pro/E Wildfire 4.0 and ANSYS WORKBENCH 11.0 software. The comparison and verification of the results obtained in FEA is done experimental...

Today most of the countries facing many environmental problems out of which water pollution are extremely hazards and world's most of the countries facing enormous challenges to solve this. Water pollution due to Heavy Metal Ions (HMIs)... more

Today most of the countries facing many environmental problems out of which water pollution are extremely hazards and world's most of the countries facing enormous challenges to solve this. Water pollution due to Heavy Metal Ions (HMIs) is a global issue which requires proper attention to maintain the water quality demands. A portable system made of MEMS sensors capable of detecting multiple analytes simultaneously is highly demanded. The HMI detection in vapour phase can be a solution for laboratory based detection, but for the field instrument using MEMS the temperature cannot be raised beyond certain limit. Hence, the microfluidic detection is the only option which required high sensitivity. Accordingly, our main objective is to develop a microfluidic platform that can be used for sensing HMIs using a capacitive microcantilever beam fabricated by using MEMS technology. The proposed system is divided into two parts; the first one includes microfluidic chamber or tub and polydimethylsiloxane (PDMS) based microfluidic channel for handling water and second one uses the array of microcantilever beams surface modified with different protein for selective detection of HMIs. In this work, we try to investigate the cantilever based capacitive sensor for different pressure due to HMIs and sensitivity enhancement. Sensitivity optimization is very much essential and it is improved by using different shape, stress concentration region (SCR) and changing the dimension of microcantilever for HMI detection in water environment. It is found that in case of rectangular beam with SCR improves deflection up to 33% and in case of triangular beam this improvement is up to 73%.

This work is on the aerodynamics design of the body and frame of a motor tricycle using SolidWorks 2011 modeling system. Its Computational Fluid Dynamics (CFD) feature was used to run simulation tests at a target speed of 150 km/h to... more

This work is on the aerodynamics design of the body and frame of a motor tricycle using SolidWorks 2011 modeling system. Its Computational Fluid Dynamics (CFD) feature was used to run simulation tests at a target speed of 150 km/h to evaluate the aerodynamic performance of the tricycle. Simulation results presented shows that lift and drag forces are diminished considerably and that 170 km/h is the maximum speed to be traveled by the tricycle for a smooth and stable ride. Also, the design reduced drastically the effects of lift and drag forces, increased the tricycle’s stability, traction and performance as well as minimized the weight of the tricycle as a result of the use of high performance to mass ratio materials such as carbon fiber for the body and alloy steel for the frame and rims.

This paper describes a type of car’s side impact performance on the BIW. The main intension is to co-relate the performance of the BIW frame (when vehicle undergo crash with a various angles towards rigid pole) and occupant safety... more

This paper describes a type of car’s side impact performance on the BIW. The main intension is to co-relate the performance of the BIW frame (when vehicle undergo crash with a various angles towards rigid pole) and occupant safety after the crash. Initially, FEM model of BIW frame is created based on logical method to solve the problem. Then, analysis evaluation of the side impact safety, method of design and manufacturing processes and the results of the side impact feature will be discussed. Then, analysis of the intrusion level according to the FMVSS No.214 or EURO NCAP standards towards the occupant (boot) space and of the occupant injury levels is discussed.

Карпенко А.С. Принцип «єдиного вікна» на митниці: сутність, проблеми практичної реалізації та перспективи удосконалення. − Рукопис. Досліджено історичні передумови становлення принципу «єдиного вікна» в Україні. Виявлено основні... more

Handling and carrying of large quantities of materials in a truck body of varied construction upon the existing state of materials, physical properties and required operation which is to be performed is one of the task taken by the... more

Handling and carrying of large quantities of materials in a truck body of varied construction upon the existing state of materials, physical properties and required operation which is to be performed is one of the task taken by the mechanical and the automobile engineers which are used for carrying sand, metals, iron ore and granite blocks. The truck body is the main part of the vehicle which contains a number of channels made up of mild steel or aluminum sheet metal. Most processing equipment units are focusing on the design of the truck body with various modifications necessary to minimize the stress and to improve the load factor of safety. In the design of truck body, a number of factors have to be considered. The most important factor is the selection of type of the body to perform the required operation in a satisfactory manner. The other selection criteria must be considered such as the induced stress and material properties. Vehicles and related structures disclosed in for mentioned patents mainly worked up on the design to increase the strength, to the reduce weight, and enhance configurability. Hence there exists a need for the industry sector to optimize the design of the dump truck body structure which allows maximizing dump truck payload capacity and simultaneously improving the strength, reducing the weight, and prolonged operational life.

All machines, vehicles and buildings are subjected to dynamic forces that cause vibration. Most practical noise and vibration problems are related to resonance phenomena where the operational forces excite one or more modes of vibration.... more

All machines, vehicles and buildings are subjected to dynamic forces that cause vibration. Most practical noise and vibration problems are related to resonance phenomena where the operational forces excite one or more modes of vibration. Modes of vibration that lie within the frequency range of the operational dynamic forces always represent potential problems. Mode shapes are the dominant motion of a structure at each of its natural or resonant frequencies. Modes are an inherent property of a structure and do not depend on the forces acting on it. On the other hand, operational deflection shapes do show the effects of forces or loads, and may contain contributions due to several modes of vibration. This project deals with optimization and modal analysis of the upper arm suspension of double wishbone suspension. Upper arm has been modeled using CATIAV5, meshing will be done in HYPERMESH12.0, and ANSYS will be used for post processing. Boundary forces will be calculated. Static analy...

Finite element stress analysis of a light vehicle chassis plays an important role during design stages. Nowadays, there are many research papers and advancing programs available in the market especially by the light vehicle manufacturers,... more

Finite element stress analysis of a light vehicle chassis plays an important role during design stages. Nowadays, there are many research papers and advancing programs available in the market especially by the light vehicle manufacturers, which are very much similar to this research work. The paper reviews the most important research works, a technical journal, and conferences papers that have been published. The paper focused on stress analysis of the light vehicle chassis using finite element assortment ANSYS. The results of reading this paper will give the researcher a review of some recent and current developments in the range of vehicle design using finite element stress analysis.

The roll forming process parameters play a major role in the quality of the final roll-formed product. Optimum configuration without any cost increase in the roll forming line could present accurate and flawless products. In this paper, a... more

The roll forming process parameters play a major role in the quality of the final roll-formed product. Optimum configuration without any cost increase in the roll forming line could present accurate and flawless products. In this paper, a roll forming process experimental modelling of a symmetrical U-section profile from advanced high strength steel (AHSS) material (type DP600) is presented. The factors selected for this study are the roll forming line velocity, the inter-distance between roll stations, the roll gap, and the diameter of the rolls. An optimization procedure for the roll forming line, via statistical design of the experimental simulation runs, is also presented. The optimum values of process parameters are calculated for minimum elastic longitudinal strains and shear strains, at strip edge, for each roll station. A reduction of 20–35% in elastic longitudinal strains could occur for all roll stations, and 30–50% reduction in shear strains occurs for roll stations with a greater folding angle, as this leads to roll-formed products of a better quality. Finally, the contribution of each factor on the longitudinal and shear strains has been calculated, showing that the inter-distance between the roll stations plays a dominant role in the roll forming process.

The present proposed work in this paper aims at developing the easy to machine fixture which not only enhances the production rate but also reduces machining time. Presently in automobile industry, the production line for engine assembly... more

The present proposed work in this paper aims at developing the easy to machine fixture which not only enhances the production rate but also reduces machining time. Presently in automobile industry, the production line for engine assembly is done in conventional method, due to which production takes too much time to produce a product. Sometimes it doesn’t fulfill the demand due to lack of production technique and delays. We have proposed a design of a fixture bracket which will be very useful for production of engine in production line. With the help of this fixture bracket, the assembling of the engine block with its sub-parts will be quite easier than the conventional method. Also we calculate the strength equations and fatigue analysis on the fixture bracket for the safety of the operator and production system.

The process is to increase the productivity and reduce the CAE FE-Modeling and analysis setup time so that overall time for product development is reduced and increases the CAE efficiency through commercially available FEA software's. Now... more

The process is to increase the productivity and reduce the CAE FE-Modeling and analysis setup time so that overall time for product development is reduced and increases the CAE efficiency through commercially available FEA software's. Now a day's oil canning and strength stiffness analysis is widely used in Automobile BIW, Closures and Trims, to see surface deflection and strength stiffness. In CAE durability analysis, 20 to 30 % of time is required for oil canning and strength stiffness analysis for BIW, Closures and Trim components, so, our proposed approach will reduce this time with accuracy and can be used easily in any commercially available CAE preprocessing software's and FEA solvers.

This paper describes design and FEA analysis of mono leaf or single-leaf spring that consists of simply one plate of spring. The performance analysis of spring is under static loading condition. Due to the absorb and release property it... more

This paper describes design and FEA analysis of mono leaf or single-leaf spring that consists of simply one plate of spring. The performance analysis of spring is under static loading condition. Due to the absorb and release property it is become a major factor in designing the leaf spring which is showing the replacement of steel springs with composite leaf springs. A current leaf spring is made up of a steel material which is having high weight, high corrosion, more noise and the property of material is changing when the load is acting and gives low natural frequency. Therefore, composite materials become the predominant alternative material for replacing the spring steels. The objective of this paper is to compare the load carrying capacity, strength and weight saving of composite leaf spring with that of EN45 steel leaf spring. The design constraints are stress, deflection and weight saving for comfort riding and enhancing durability of spring. Dimensions of the composite leaf spring are to be taken as same as conventional EN45 steel leaf spring used in TATA SUMO GOLD for rear suspension. A Finite element approach for analysis of mono leaf springs using ANSYS R15 software is carried out. Using CATIA V5R20 for modelling the leaf spring. The results are compared with the properties of EN45 steel and thermoplastic polyimide with 30% carbon fibre composite material.

Gas Tungsten Arc Welding Process (GTAW) is widely used in fabrication of Aluminium and Aluminium Alloy material when precision is considered as a prime importance. Deformations in the object undergoing welding are one of the foremost... more

Gas Tungsten Arc Welding Process (GTAW) is widely used in fabrication of Aluminium and Aluminium Alloy material when precision is considered as a prime importance. Deformations in the object undergoing welding are one of the foremost problems encountered in the welding industry. Thus it is often required to study the factors which affect the deformations produced during welding to avoid errors in the geometry. Present investigation highlights Experimental and Finite Element Analysis of a Single-V Groove Butt Weld on Weld Pool Geometry of Aluminium Alloy Plate under Different Joint Parameters.Finite Element Method (FEM) has been employed to do the transient thermal and structural analysis of the assembly. The Finite Element Analysis has been done on ANSYS 14.5 Workbench. Number of factors is liable to produce effects in the job during the welding operation. Aim of this paper is the effect of welding parameters like as welding current, shielding gas flow rate and welding speed with mechanical Properties like tensile strength and hardness. After that finite element analysis for temperature distribution and distribution of the stresses in the welded Aluminium alloy plate. The results show that the larger the Welding current and smaller welding speed will lead to the maximum residual tensile stress. Therefore a residual stress will arise from the restraint position. The ultimate residual stress of weldment is determined by material yield strength at different temperature. The higher yield strength at different temperature has higher material residual stress. Because of its higher thermal conductivity, aluminium alloy test specimens have small temperature differential.