Informatics Publishing Limited

Dhananjay R. Dolas ¹, Kuldeep K. Jagtap ¹

Affiliations
1 JNEC, Aurangabab, IN

Abstract

Vehicle suspension system has to perform complexity requirements, which includes road holding and equality, driving pleasure, riding comfort to occupant. The objective of this paper is to analyze the performance of Shock absorber spring by varying stiffness, which is obtained by doing optimization using Genetic Algorithm as optimization tool to obtain maximum ride comfort. The Shock absorber is one of the suspension systems designed mechanically to handle shock impulse and dissipate kinetic energy. It reduces the amplitude of disturbances leading to increase in comfort and improved ride quality. The spring is compressed quickly when the wheel strikes the bump. The compressed spring rebound to its normal dimension or normal loaded length which causes the body to lift. The spring goes down below its normal height when the weight of the vehicle pushes the spring down, spring resist deformation. Modeling and analysis is done using Pro E and ANSYS respectively.

Keywords

Coil Spring, Stiffness, Modelling & FEA.

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Sarfraz Ali Quadri ¹, Swapneel R. Zende ¹, Dhananjay R. Dolas ²

Affiliations
1 MGM’s Jawaharlal Nehru Engineering collage, Aurangabad, MS, IN
2 Department of Mechanical Engg, GM’s Jawaharlal Nehru Engineering Collage, Aurangabad, MS, IN

Abstract

Fault tree analysis (FTA) method was developed in1962 at Bell Laboratories by H.A Watson of U.S. Airforce for the evaluation and estimation of system reliability and safety. In this paper, we present the general procedure for FTA, its application in various fields and the modifications that have been made through the time to overcome the inadequacies of the method. For this work, we consider the case-study of ball pen which we use for writing purpose & presented a simplified methodology to determine base cause failure of the system.

Keywords

Fault Tree Analysis (FTA), Ball Pen, and Gate & or Gate Etc.

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