利用白车身振动模态试验对车身动态设计的评价与分析  

The Vibration Testing and Modal Analysis for Body-in-white of a Car

作　　者：麻海舰[1] 周鋐[1] 

机构地区：[1]同济大学汽车学院,上海201804

出　　处：《噪声与振动控制》2007年第4期58-60,共3页Noise and Vibration Control

摘　　要：在建立白车身的三维几何模态试验模型的基础上,采用多点激振多点拾振方法对车身的模态进行实测。利用Test.lab软件进行模态参数识别,并利用模态参数识别结果,为整车的动态特性的分析和结构设计的修改提供方法和理论依据。In this paper,a 3D geometrical Model is built for testing,and based on this the MIMO method(multi-input and multi-output) is applied to measure the modal of body-in-white.Modal parameters are extracted with the help of Test.lab software.And the obtained results will provide the basis for the improvement and optimization design of the car body.

关 键 词：振动与不皮 白车身 振动试验 模态分析 

分 类 号：U467[机械工程—车辆工程]