Abstract:
The project aim is to design and analysis of a leader type truck (TATA ACE model) chassis. The Automotive chassis is considered as the backbone of the vehicle. On chassis different members are provided to strengthen it and an important consideration in chassis design is also to have adequate bending stiffness for supporting the body and different parts of the automobile. Also, it should be rigid enough to withstand the shock, twist, vibration and other stresses. Strength and the stiffness are the two important criteria for the design of the chassis. The cross member is also analysed for the deflection due to bending The chassis frame consists of side members attached with a series of cross members. And the design of the chassis would be taken in the CATIA V5 software, the design calculations are carried out with the IS standards. FEA is done on the modelled chassis using the NASTRAN PATRAN Workbench; the FEA is carryout for linear static analysis of the chassis. Also Stress analysis using Finite Element Method can be used to locate the critical point which has the highest stress. This critical point is one of the factors that may cause the failure.

Keywords: Chassis, Catia, Nastran-Patran, FEA.