文章针对某款成熟车型的前悬麦弗逊悬架下摆臂进行轻量化设计,在提取下摆臂各硬点在整车典型多个工况下的栽荷的前提下,对下摆臂进行CAE分析,找出其设计裕度,并开展结构的拓扑优化,合理改进下摆臂结构,实现下摆臂结构轻量化设计。 Aiming at the light weight design of the lower suspension arm of a mature McPherson suspension, the CAE analysis of the lower arm is carried out on the premise of extracting the load of the lower suspension arm under the typical vehicle working conditions. , Find out its design margin, and carry out topology optimization of the structure, reasonably improve the structure of the lower arm, and realize the lightweight design of the lower arm structure.