Optimal Method for Car Structural Reliability

FEOD (Finite Element Optimization Design) is a design methodology that derives optimal design solutions by concurrently considering various mutually dependent design elements from an assortment of disciplines. As such, it is applicable to the designing of cars. This paper is concerned with design optimization of material reinforcement of car body frame for rigidity improvement. 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 FEOD methods, the overall rigidity of the car body frame can be improved substantially in a cost effective manner and provides more convincing evidence for optimization design of the car body frame. Copyright © 2014 IFSA Publishing, S. L.