轿车副车架连接点动刚度试验分析  

Dynamic stiffness analysis of passenger car sub-frame interface attachments

作　　者：顾宇庆[1] 李俊鹏[1] 梁新华[1] 梁映珍[1] 

机构地区：[1]上海汽车集团股份有限公司技术中心,上海201804

出　　处：《机械研究与应用》2012年第6期71-73,共3页Mechanical Research & Application

摘　　要：以某轿车前副车架为研究对象,利用试验分析方法研究了该副车架与悬架,传动系的连接点动刚度曲线,并与有限元仿真计算结果进行了对比。对比结果表明仿真结果和试验数据是真实可靠的。副车架动刚度试验和仿真结果为其动态特性设计提供了依据,对提高整车的NVH具有重要意义。Taking passenger car＇s sum-frame as subject,the dynamic stiffness curve of sub-frame,suspension and interface attachments of transmission base on the experimental method are studied.The test results are verified with the finite element analysis result.The result shows that the dynamic stiffness curve can be used for dynamic characteristics design and also help to improve vehicle NVH level.

关 键 词：副车架 动刚度 速度导纳 有限元 

分 类 号：TH122[机械工程—机械设计及理论]