Simulation and Static Analysis of an Off-Road Vehicle Roll Cage
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 9
Abstract
The SAE-BAJA competition is arranged every year with a purpose to have teams of engineering students design, build and race a prototype of a four-wheel, one passenger, off-road vehicle. The most important aspect of the vehicle design is the frame. The frame contains the operator, engine, brake system, fuel system and steering mechanism, it must be of adequate strength to protect the operator in the event of a rollover or impact. The roll cage must be constructed of steel tubing, with minimum dimensional and strength requirements dictated by Society of Automotive Engineers (SAE). Increased concern about the roll cage has created the importance of simulation and analysis thereby predicting failure modes of the frame. In the present paper, we have used ANSYS to investigate the response of the frame under various impacts. We considered a direct frontal impact and side impact that results in a 4g horizontal loading, a rollover impact of 3g deceleration value, bump impact and front torsional impact analysis with 3g deceleration value. The impact loading is simulated by restricting displacements at certain locations, and applying discrete forces at various points on the frame where the weight is concentrated. Throughout the analysis of roll cage more emphasis was given on obtaining a allowable factor of safety and designed according to it
Authors and Affiliations
R. Bhandari , P. Birajdar , A. Dafedar , S. Bammani , A. Pereira
Keywords
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