基于铸铝工艺的悬架下控制臂可变壁厚优化设计

摘要

Based on size optimization in OptiStruct and surface construct in CATIA, the authors take a low control arm of vehicle suspension using aluminum casting process as the research object, carry out its variable thickness de-sign. They confirm the feasibility and reliability of the optimal method through simulation analysis and vehicle tests, and realize the light weight design for the low control arm of vehicle suspension. The optimization design method of variable wall-thickness proposed in this paper provides a reference for lightweight design of other automotive parts using aluminum casting process.%以采用铸铝工艺成型的汽车悬架下控制臂为研究对象，基于OptiStruct尺寸优化与CATIA曲面建构方法，开展可变壁厚悬架下控制臂的优化设计，并通过仿真分析与实车试验验证方案的可行性与可靠性，实现下控制臂的轻量化设计。本文提出的可变壁厚优化设计方法可为汽车其它零部件的轻量化设计提供参考。