Optimization of Double Wishbone Suspension System

Abstract

Suspension system plays an essential role in automobile and is always responsible for driving comfort and safety. Suspension system not only absorbs the tremendous vibrations but also transmits various forces between road and vehicle body. The double wishbone suspension system provides balanced stability under various conditions like cornering, braking, loading and unloading. A Double Wishbone suspension system consists of upper control arm, lower control arm, strut, knuckle, etc in which upper control arm is crucial part of suspension system. In an automobile industry optimization is focused all aspects for improvement in performance. This project consists of upper control arm, lower control arm, hub and spring to contribute towards material optimization and analysis of upper control arm, lower control arm, hub for double wishbone suspension system. Upper control arm, lower control arm, hub is designed using CATIA V5 and FEA on ANSYS is used for post processing. Required forces like Lateral, Longitudinal and Vertical forces acting on arm are calculated. In this we would be comparing the most recommend material AISI 4130 with the ceramic matrix composite of Al₂O₃ for upper control arm, lower control arm, hub as how they both compare in cornering conditions.