侧风环境下列车高速通过站台的流固耦合振动  

Fluid-Solid Coupling Vibration of Train Passing through Platform at High Speed in Cross Wind

作　　者：崔涛[1] 张卫华[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《西南交通大学学报》2011年第3期404-408,共5页Journal of Southwest Jiaotong University

基　　金：国家973计划资助项目(2007CB714700);国家自然科学创新研究群体科学基金资助项目(50821063);国家自然科学基金优秀国家重点实验室资助项目(50823004)

摘　　要：为了考察侧风环境下列车能否临靠站台高速安全通过,采用列车空气动力学和列车系统动力学相结合的方法,通过侧风与列车的流固振动分析获得列车姿态的变化;考虑侧风作用下,列车的姿态变化和轨道几何不平顺的影响,分析了侧风环境下,列车临靠站台高速通过时的气动响应.计算结果表明,与无风环境尾车易与站台碰撞不同,在6 m/s侧风环境下,当列车以350 km/h的速度临靠站台通过时,车头前端是离站台最近的位置.In order to evaluate whether a train can pass through a platform safely at high speed in cross wind,the air-actuated response in this case was studied with both train aerodynamics and train system dynamics considering the track irregularity and the attitude changes of trains caused by cross wind.The attitude changes were obtained from the analysis of cross wind and train fluid-solid coupling vibration.The results show that,different from that the tailing vehicle is easy to collide with the platform in a no-wind environment,the closest point to the platform appear on the front-end of the leading vehicle when the train passing through the platform at the speed of 350 km/s in 6 m/s cross wind.

关 键 词：高速列车 站台 侧风 姿态变化 流固耦合振动 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程] U270.11[机械工程—车辆工程]