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Determining Fatigue Life of Helical Shock Absorber Using Computational Techniques While Altering Geometrical Parameters

Author(s):

Ms. Jayashri V. Shinde , JSPM?s Imperial College of Engineering & Research, Wagholi, Pune-14, India; Prof. Kulkarni G. A, JSPM?s Imperial College of Engineering & Research, Wagholi, Pune-14, India; Prof. Swapnil S. Kulkarni, Able Technologies India Pvt. Ltd., Pune

Keywords:

Suspension Spring, Altair Hyper Works, Fatigue Analysis, Repeated Load, MSC Fatigue, Altair Hyper Works, Helical Spring, Geometry, MSC Fatigue, Shock Absorber, Fatigue Life

Abstract

Vehicle Suspension system is very important for consideration in comfort and safety of persons using it. To avoid the effect of ups and downs of the road, vehicle should have good suspension system. And compression spring is crucial part of this system. As the spring in the suspension system is exposed to alternating cycles of the load it may lead to fatigue failure of compression spring. This paper shall deal with proposing alternatives to the existing (benchmark) spring geometry. The variants will be evaluated using computational techniques to assess the extent of damage in terms of fatigue life. The effect of prescribing a alternate value to the given geometrical parameters under consideration will be studied using Finite element modeling method. A preliminary mathematical treatment shall be offered to desire the fatigue life. Experimentation of any one variant should offer validation for the solution arrived using numerical computational methodology. The scope for effecting change in the geometry can be brought about using any one parameter like geometrical form of the wire, round or rectangular and/or the variable pitch of the spring. Altair Hyper Works will be deployed as solver to determine results in the structural assessment to determine fatigue life of the spring.

Other Details

Paper ID: IJSRDV4I70555
Published in: Volume : 4, Issue : 7
Publication Date: 01/10/2016
Page(s): 921-927

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