车体下吊吊挂方式和弹性悬置质量对车体模态频率的影响  

The Influence of Hanging Way and the Flexible Suspension Mass on the Body Modal Frequency

作　　者：赵阳阳[1] 刘士煜[1] 张伟 

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《佳木斯大学学报（自然科学版）》2012年第3期326-329,333,共5页Journal of Jiamusi University：Natural Science Edition

基　　金："十一五"国家科技支撑计划(2009BAG11B02)

摘　　要：运用有限元软件建立高速列车CRH3承载结构和整备状态有限元模型,并进行了整备状态下试验模态分析.对比分析了车体下吊分别采用弹性连接和刚性连接时车体模态频率的变化,以及整备状态下不同计算方法理论模态频率与试验模态频率.发现当考虑车体弹性悬置质量时车体有限元模型的模态频率计算结果与试验模态频率结果更加接近.The finite element model of high speed train CRH3 was established based on the finite element software, and the experimental modal analysis was carried out. The difference of body modal frequencies was analyzed, when the body hanging is connected with the body respectively by elastic connection and rigid connection, as well as experimental modal frequency and theoretical modal frequency based on different calculation methods. When considering car - body elasticity suspension mass, the modal frequency of body finite element model is closer to the experimental modal frequency.

关 键 词：高速列车 吊挂方式 弹性悬置质量 模态频率 

分 类 号：U271.703[机械工程—车辆工程]