铁道客车车体模态试验研究  

Research on Modal Test of Car Body for Railway Passenger Cars

作　　者：段合朋 邓爱建 刘宏友 贾尚帅 DUAN Hepeng;DENG Aijian;LIU Hongyou;JIA Shangshuai(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China;CRRC Tangshan Locomotive&Rolling Stock Co.,Ltd.,Tangshan 063035,China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266031 [2]中车唐山机车车辆有限公司,河北唐山063035

出　　处：《铁道车辆》2021年第4期35-37,共3页Rolling Stock

摘　　要：以某铁道客车车体为研究对象,分别进行了激振器、滚动振动台、线路运行工况下的模态试验,分析了车体结构与整备状态车体模态参数的变化、不同试验条件下模态参数的差异以及不同加载状态对模态参数的影响。结果表明:激振器试验法、滚动振动台试验法、线路试验法3种方法得出的车体模态试验结果一致性相对较好。Taking a railway passenger car body as the research object,the modal tests with exciter,rolling vibration rig and under the condition of line operation are carried out respectively.The changes of modal parameters of the car body structure and the preparation condition,the differences of modal parameters under different test conditions and the influence of different loading conditions on modal parameters are analyzed.The results show that the consistency of modal test results of car body obtained by actuator test method,rolling vibration rig test method and line test method is relatively good.

关 键 词：模态试验 激振器 滚动振动台 模态参数 

分 类 号：U270.1[机械工程—车辆工程]