轻卡白车身有限元模态与试验模态的对比研究  

Comparing Analysis of Finite Element Modal and Experiment Modal of Cab Body-in-White

作　　者：祝慧[1] 王香廷[1] 唐程光[1] 

机构地区：[1]江淮汽车股份公司技术中心,安徽合肥230601

出　　处：《专用汽车》2011年第7期70-72,共3页Special Purpose Vehicle

摘　　要：以某轻卡白车身为研究对象,建立了有限元模型,计算其在自由状态下的振动形态,并进行了模态试验分析,对比研究该白车身的固有频率、振型等模态参数,评价了该车身的动态特性,指导车身的结构设计,并验证了白车身有限元模型的有效性。According to the BIW of a cab as research object, the finite element model, reckons the libration shape in freedom state with this model and analysis the modal test was set up in the paper. By contrast with modal coefficient such as theinherent frequency and shape in BIW, the dynamic feature of BIW was valued and can be used as guideline of the design of body structure design. The finite element analysis model＇s availability has been examined.

关 键 词：白车身 有限元 模态 试验 

分 类 号：U469.2[机械工程—车辆工程]