GLOBAL STIFFNESS ANALYSIS OF BIW STRUCTURE

Sharanbasappa, E Sujith Prasd, Praveen Math

Abstract: This paper mainly involves the global stiffness analysis of entire Body In White (BIW) structure of car that includes the torsional stiffness, sag analysis under appropriate load cases and boundary conditions it suits the real loading conditions. The purpose of this analysis is to check the stiffness (strength) of BIW structure as it takes up the entire vehicle self-weight along with the occupant’s weight under consideration. If the BIW structure does not have sufficient stiffness it will produce unnecessary deformations under different loading conditions when put into operation, it also effect the dynamic performance & ride comfort t of vehicle hence it is necessary to provide proper stiffness to the BIW structure of vehicle under consideration. Sedan is considered as the car variant, skeleton analysis is taken for the work, in which the number of load is acting on the car body but we are considering the Bending & Torsional load for the calculation purposes.

Keywords: BIW: Body in White

DOI: https://doi.org/10.15623/ijret.2016.0506035