强侧风下中速磁浮列车在高架桥上运行时的气动特性研究  

Study on Aerodynamic Performance of Medium-speed Maglev Train Running over Viaduct under Strong Crosswind

作　　者：高锋 罗华军 杨颖 吴志会 张文跃 周鹏 侯磊 GAO Feng;LUO Huajun;YANG Ying;WU Zhihui;ZHANG Wenyue;ZHOU Peng;HOU Lei(CRRC Zhuzhou Locomotive Co.,Ltd.,412001,Zhuzhou,China)

机构地区：[1]中车株洲电力机车有限公司,株洲412001 [2]磁浮交通车辆系统集成湖南省重点实验室,株洲412001

出　　处：《城市轨道交通研究》2021年第9期165-169,共5页Urban Mass Transit

基　　金：国家重点研发计划项目(2016YFB1200601);湖南省科技创新计划项目(2018TP1035);湖南创新型省份建设专项项目(2019RS2061)。

摘　　要：近年来,磁浮列车在轨道交通系统中发挥着越来越重要的作用,开展强侧风环境下中速磁浮列车在高架桥上运行时的空气动力学性能研究具有特殊意义。通过数值模拟的方法,对中速磁浮列车在不同风速作用下以不同速度通过高架桥时的空气动力学性能展开研究。研究结果显示:磁浮列车整车受到的侧向力、升力、侧滚力矩、偏航力矩随环境风速的增加而增加,随车速的增加而减小。而相同工况下,头车受到侧向力和侧滚力矩最大,最有可能发生车轨接触故障;尾车和头车受到的偏航力矩较大,容易引起车辆的左右晃动。Maglev trains have been playing an increasingly important role in rail transit system in recent years,and it is of special significance to carry out the study of aerodynamic performance of medium-speed maglev running over viaduct under strong crosswind.Through numerical simulation method,the aerodynamic performance of medium-speed maglev train crossing the viaduct at different speeds under different wind speeds is studied.The results show that the lateral force,lift,rolling moment and yaw moment of the whole maglev train increase with the increase of ambient wind speed and decrease with the increase of train speed.Under the same operating conditions,the head vehicle is subjected to the most lateral force and rolling moment,the most prone to vehicle contact failure.Tail and head vehicles are subjected to a large yaw torque,easy to cause left and right shaking of the vehicle.

关 键 词：中速磁浮列车 高架桥 强侧风 气动载荷 

分 类 号：U237[交通运输工程—道路与铁道工程]