3）在镜盖与镜框、镜框与基板之间增加卡扣安装点。

4）在车门上后视镜安装板增加如图示四个焊点，分别与内板及窗框连接。

优化结果汇总见下表，经过优化，达到了目标值要求。

5 结论

后视镜性能好坏关系到汽车的主动安全，对其的分析优化具有一定的实质性意义。 后视镜的优化方案主要从增强其结构刚度，特别是底座处的刚度对其影响较大；当后视镜单体模态较高时，进一步的优化要从增强与车门的安装处着手。

6 参考文献

[1] HyperWorks Help Documents.

[2] 张胜兰 李楚琳 郑冬黎 郝琪编 《基于HyperWorks的结构优化设计技术》 机械工业出版社 2008

Structure Performance Study For Exterior Rear-View Mirror

Xi Lingling Liu Peng Jiang Yan Zhang Jian

Abstract：Exterior rear-view mirror is important to the visual field clarity for the driver. National  standards and manufacturer’s standard have demands about it . This paper is mainly about mode analysis based on CAE method. In order to get the target of mode frequency ,do design study to find the appropriate structure to get the target with thinking about engineering practice.

Key words: Exterior Rear-View Mirror  CAE  Safety HyperMesh