基于可靠性原理的悬架下摆臂轻量化设计研究

摘要

基于可靠性理论,结合有限元结构优化方法进行某悬架下摆臂的轻量化设计.轻量化设计后的结构质量略有减少,结构可靠性大大增加,达到了结构优化设计的目的.优化后的结构在原理样车上的应用验证了有限元分析结果的正确性和该优化设计方法的可行性.%Based on reliability theory, combined with finite element method for structure optimization, the lightweight design for the lower ann of a suspension is conducted. After lightweight design, the mass of structure is reduced slightly and its reliability is improved greatly, attaining the goal of structure optimization. The application of optimized structure to prototype vehicle verifies the correctness of finite element analysis and the feasibility of the op-timization method.