Dr. Pravin Hujare

Tanmay Barge

Shubham Bhojane

Dnyanraj Chaudhari

Aniket Rajput

Abstract

It is vital to absorb the vibration because it occurs frequently during mechanical engineering operations and lowers the efficiency of the machine. This can be done by any shock-absorbing instrument like a Damper, Rubber etc. This paper explores shock-absorbing activity between Leaf springs in automobile and their endpoints. Here, the main emphasis is placed on the Fatigue Life Analyses of four different rubber materials: Silicon Rubber, Hydrogenated Nitrile Butadiene Rubber, Styrene-Butadiene Rubber, and Neoprene Rubber. Maximum deformation, stress and fatigue life are the main parameter to decide which rubber is best. Thickness of Rubber bush is varied between 6.5 mm and 8mm. On the basis of fatigue life and stress criteria, all of this rubber materials are compared. Rubber bush fatigue life is significantly influenced by the SN curve. Leaf Spring loading conditions are taken into account for evaluating the performance of Rubber bush. The numerical analysis using ANSYS software is performed to determine fatigue life and stress in rubber bush with different material. The stress developed in rubber bush is observed to be affected by variations in thickness, and fatigue life is found to depend on material composition.

Keywords- Fatigue Life, Deformation, Stress, Leaf Spring, Noise, SN Curve