车身后减振器安装点动刚度优化设计  

Optimization of Dynamic Stiffness for Body Mounting Point of Rear Shock Absorber

作　　者：史雪妍 张骥 SHI Xueyan;ZHANG Ji

机构地区：[1]华晨汽车工程研究院

出　　处：《汽车工程师》2021年第4期30-32,共3页Automotive Engineer

摘　　要：某公司上市车型在研发过程中,将后轮减振器铝骨架更改为铁骨架,导致车身后减振器安装点动刚度下降低于目标值。文章针对这一问题的分析解决过程进行了详细描述,列举出解决问题过程中的3个方案,3个方案均对后轮罩结构进行合理的优化,其中方案1与方案2对整体动刚度的提高效果微弱,方案3通过增加结构整体连接性、增大零件尺寸及对零件增加侧翻边等方法提高了该安装点的动刚度,对后续车型的该处结构设计具有指导意义。In the research and development process of a company's listed vehicle,due to changing the material of the rear wheel shock absorber framework,the dynamic stiffness of the mounting point of the body rear shock absorber decreased,which was lower than the target value.In this paper,the analysis and solution process of this problem is described in detail,and three solutions are listed in the process of solving the problem.The three solutions all optimize the structure of the rear wheel housing reasonably.Among them,the improvement of the overall dynamic stiffness of scheme 1 and scheme 2 is weak.The scheme 3 improves the dynamic stiffness of the mounting point by increasing the overall connectivity of the structure,increasing the size of the parts and increasing the side flanging of the parts,which has a guiding significance for the structural design of the subsequent models.

关 键 词：安装点 动刚度 后轮罩 结构优化 

分 类 号：U463[机械工程—车辆工程]