Lightweight Design of Passenger Car Chassis Considering Occupant Safety
To reduce occupant damage and passenger car weight,the simulation analysis of frontal 100%overlapping rigid barrier collision at a speed of 32 km∙h-1 was performed on the simplified model of the passenger car.According to the analysis results,the topological optimization design of the passen-ger car chassis was carried out.The structural optimization design of the front structure of the passenger car was conducted.After the optimization,the head injury value of the occupants was reduced by 15.8%;the chest acceleration was reduced by 15.6%;the living space was increased by 9.3%,and the weight of the passenger car skeleton was reduced by 3.1%,which achieved the purpose of optimizing the design.