基于超导电动悬浮车辆的动力学模型研究  

Dynamic Model of Superconducting Electric Levitation Vehicle

作　　者：张晓旭 张赛 马卫华[1] 李腾飞 王自力[1] 罗世辉[1] ZHANG Xiaoxu;ZHANG Sai;MA Weihua;LI Tengfei;WANG Zili;LUO Shihui(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China;CRRC Changchun Railway Vehicles Co.,Ltd.,Changchun 130000,China)

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 [2]中国中车长春轨道客车股份有限公司,吉林长春130000

出　　处：《机械》2022年第10期35-41,57,共8页Machinery

基　　金：国家自然科学基金面上项目(51875483);牵引动力国家重点实验室自主研究课题(2020TPL_T04)。

摘　　要：相比于电磁悬浮,超导电动悬浮的超导磁体与轨道线圈之间的动态相互作用关系更为复杂,无法采用与电磁悬浮相类似的等效磁轨关系建立动力学模型。针对此问题,本文对超导电动悬浮车辆动力学模型建模方法进行了探究。首先,基于车辆悬浮系统的基本工作原理,利用有限元软件仿真计算得到不同速度及间隙下的二维磁力矩阵;其次,基于MATLAB组建数据库,借鉴曲面积分思想和极限理论,利用SIMULINK平台将离散化的二维磁力矩阵搭建成n维关系矩阵,为后续超导电动悬浮车辆磁轨关系提供一定的基础;最后,基于多体动力学软件SIMPACK及其SIMAT技术完成SIMPACK与MATLAB的联合仿真模型。此外,通过对比分析系统固有频率验证了动力学模型的正确性,并利用所建立动力学模型分析了时速700公里系统的动力学响应,结果显示车辆运行各项动力学指标的仿真结果大小均在合理范围。本文工作可为今后超导电动悬浮列车动力学研究提供一定参考。Compared with the Electromagnetic Suspension Maglev,the dynamic interaction relationship between the superconducting magnet and the orbital coil of the superconducting electric levitation is more complicated,and the dynamic model cannot be established by using the equivalent magnetic orbit relationship similar to the Electromagnetic Suspension Maglev.Aiming at solving this problem,this paper explores the modeling method of dynamic model of superconducting electric levitation vehicle.Firstly,based on the basic working principle of the vehicle suspension system,the finite element software is used to simulate and calculate the two-dimensional magnetic matrix under different speeds and gaps.Secondly,a database is established based on MATLAB,and the surface integration idea and limit theory are used for reference.The two-dimensional magnetic force matrix is built into an n-dimensional relationship matrix,which provides a certain basis for the magnetic track relationship of the subsequent superconducting electric levitation vehicle.Finally,the co-simulation model of SIMPACK and MATLAB is completed based on the multi-body dynamics software SIMPACK and its SIMAT technology.In addition,the correctness of the dynamic model is verified by comparing and analyzing the natural frequency of the system,and the dynamic response of the system at a speed of 700 kilometers per hour is analyzed by using the established dynamic model.The simulation results of various dynamic indicators of vehicle operation are all within a reasonable range.The research provides reference for future study on dynamics of superconducting electric levitation vehicle.

关 键 词：超导磁浮 电动悬浮 动力学模型 磁轨关系 n维查表法 

分 类 号：U237[交通运输工程—道路与铁道工程]