轿车副车架模态试验及有限元分析  

Modal Test and FEA Modal Analysis of Subframe

作　　者：王云[1] 周鋐[1] 麻海舰[1] 

机构地区：[1]同济大学汽车学院

出　　处：《中国科技信息》2007年第3期87-89,共3页China Science and Technology Information

摘　　要：本文使用了试验与有限元两种手段对轿车副车架进行了模态特性的分析研究。首先对副车架进行了模态试验并提取模态参数,然后建立副车架的有限元模型,通过仿真计算获得其自由状态下的模态参数,之后将试验结果与有限元结果进行对比分析。最后在确定有限元模型可靠的情况下,模拟计算了副车架在真实约束下的模态特性,为分析副车架在工作状态下的动态特性提供有用参考。In this ,the methods of Finite Element Analysis and Modal Test were used to study the modal of a saloon car＇s subframe,Firstly,Completed the modal test and gained the modal parameter of the subframe,then,the free vibration modal parameters were calculated by computer with the FEA model,and compared it with the result of modal test,Finally,based on the rellable FEA model,the subframe＇s modal characteristics under real constraints was simulated and the result can provide useful reference for analyzing its dynamic characteristics when it＇s flxed the car.

关 键 词：副车架 模态试验 有限元 模态分析 轿车 

分 类 号：U467.3[机械工程—车辆工程]