Coupling vibration analysis of high-speed maglev train-viaduct systems with control loop failure  

考虑控制回路失效的高速磁浮列车-桥梁系统耦合响应分析

作　　者：GUO Wei CHEN Xue-yuan YE Yi-tao HU Yao LUO Yi-kai SHAO Ping HUANG Ren-qiang WANG Xu-yixin GUO Zhen TAN Sui 国巍;陈雪元;叶毅滔;胡瑶;罗怡凯;邵平;黄仁强;王徐一鑫;国振;谈遂(School of Civil Engineering,Central South University,Changsha 410075,China;National Engineering Research Center of High-speed Railway Construction Technology,Changsha 410075,China;Engineering Technology Research Center for Prefabricated Construction Industrialization of Hunan Province,Changsha 410075,China;CCCC Highway Consultants Co.,Ltd.,Beijing 100088,China;School of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]School of Civil Engineering,Central South University,Changsha 410075,China [2]National Engineering Research Center of High-speed Railway Construction Technology,Changsha 410075,China [3]Engineering Technology Research Center for Prefabricated Construction Industrialization of Hunan Province,Changsha 410075,China [4]CCCC Highway Consultants Co.,Ltd.,Beijing 100088,China [5]School of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China

出　　处：《Journal of Central South University》2022年第8期2771-2790,共20页中南大学学报（英文版）

基　　金：Project(2021zzts0775) supported by the Independent Exploration and Innovation Project for Graduate Students of Central South University,China;Project(2021JJ30053) supported by the Hunan Natural Science Foundation,China。

摘　　要：The risk of failure of the control loop can occur when a high-speed maglev train runs on viaduct.Meanwhile,the failure of the levitation magnets which balances the gravity of the maglev train could cause the train collision with track.To study the dynamic response of the train and the viaduct when the levitation magnet control loop failure occurs,a high-speed maglev train-viaduct coupling model,which includes a maglev controller fitted by measured force-gap data and considers the actual structure of train and viaduct,is established.Then the accuracy and effectiveness of the established approach are validated by comparing the computed dynamic responses and frequencies with the measurement results.After that,the dynamic responses of maglev train and viaduct are discussed under normal operation and control loop failures,and the most disadvantageous combination of control loop failures is obtained.The results show that when a single control loop fails,it only has a great influence on the failed electromagnet,and the maglev response of adjacent electromagnets has no obvious change and no collision occurs.But there is a risk of rail collisions when the dual control loop fails.高速磁浮列车在轨道桥梁上运行时,有发生控制回路失效的风险。同时,由于磁浮列车重力由悬浮电磁力平衡,悬浮电磁铁失效可能会导致列车撞轨。为了研究悬浮电磁铁控制回路发生故障时列车和轨道桥梁的动态响应,本文通过联合仿真的方法建立了高速磁浮车桥耦合作用模型,其中磁浮控制器通过实测磁浮力-间隙数据拟合,磁浮列车和轨道桥梁考虑实际的结构构造,并根据上海磁浮线路的实测结果,验证了耦合作用模型的有效性。之后,进行了正常运行状态和控制回路失效下的车桥动力学分析,得到了控制回路失效的最不利组合。结果表明,在单控制回路失效时,仅对本电磁铁间隙影响较大,相邻电磁铁磁浮间隙无明显变化并且不会出现撞轨。但双控制回路失效时有发生撞轨的风险。

关 键 词：high-speed maglev train control loop failure coupling vibration maglev control 

分 类 号：U266.4[机械工程—车辆工程] U441.3[交通运输工程—载运工具运用工程]