高速动车组地板振动问题试验研究  

Experimental Research on the Vibration of the EMU Floor

作　　者：赵大庆[1] 尤泰文[1] 周劲松[1] 

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：《机电一体化》2017年第1期22-26,共5页Mechatronics

基　　金："十二五"国家科技支撑计划资助项目(编号2015BAG19B02;2015BAG13B01)

摘　　要：针对国内某型高速列车地板振动脚感发麻问题,对该型车辆进行了线路运行试验研究。分别分析了对构架到车体钢结构、车下设备吊挂到车体钢结构、车体钢结构到地板的振动传递率,并结合地板不同频段振动对车辆运行舒适度贡献量研究,从振动传递路径上分析并确定了影响车辆舒适度的主要因素。结果表明,车体钢结构振动经弹性支承传递至地板后,在20~50Hz频率范围呈放大趋势,且该频段振动对车辆运行舒适度贡献量较大,导致该型高速列车地板振动脚感发麻。Aiming at the passengers＇ discomfort on the EMU train, the vehicle in-situ test is carried out. The transmissibility that the frame to the steel under the carbody, hanging equipments to the steel under the carbody and the steel under the carbody to floor is analyzed, respectively. Combining with the research of ride comfort contribution of different frequency vibration for the train, the main reason of abnormal vibration through vibration transmission path is confirmed. Results show that, the vibration from the steel under the carbody via the elastic supports to the floor in- creases in 20--50Hz that influences the vehicle ride comfort contribution a lot, which leads to the discomfort on the EMU train.

关 键 词：振动测试 舒适度分析 车体地板 传递率 

分 类 号：U266[机械工程—车辆工程]