Automobile body reinforcement by finite element optimization

This paper is concerned with design optimization of material reinforcement of automobile body for rigidity improvement. Two finite element optimization techniques, topology optimization and sizing optimization, are explored to find out an optimal manufacturing feasible design from multiple optimized designs. The application of these methods demonstrates that through innovative utilization of the topology optimization technique, an optimal manufacturing feasible design can be obtained. The relationship between the rigidity improvement and different configuration of material reinforcement is also investigated. It is concluded that through appropriate application of finite element optimization methods, the overall rigidity of the automobile body can be improved substantially in a cost effective manner.