Research on adaptability in horizontal curve negotiation of HTS maglev train

LI Qiang; HE Peiheng; ZHENG Jie; DENG Bin; DENG Zigang

doi:10.13890/j.issn.1000-128X.2024.01.243

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Research on adaptability in horizontal curve negotiation of HTS maglev train

Railway Rolling Stock | 更新时间：2024-08-01

- Research on adaptability in horizontal curve negotiation of HTS maglev train
- Electric Drive for Locomotives Issue 3, Pages: 90-98(2024)
- 作者机构：
  
  1.西南交通大学先进驱动节能技术教育部工程研究中心，四川成都 610031
  2.西南交通大学轨道交通运载系统全国重点实验室，四川成都 610031
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.01.243
  CLC： U237
- Published：10 May 2024，
  
  Received：20 July 2023，
  
  Revised：15 January 2024，
- 稿件说明：
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李强, 何沛恒, 郑杰, 等. 高温超导磁浮车水平曲线通过适应性研究[J]. 机车电传动, 2024(3): 90-98.

LI Qiang, HE Peiheng, ZHENG Jie, et al. Research on adaptability in horizontal curve negotiation of HTS maglev train[J]. Electric drive for locomotives,2024(3): 90-98.
李强, 何沛恒, 郑杰, 等. 高温超导磁浮车水平曲线通过适应性研究[J]. 机车电传动, 2024(3): 90-98. DOI：10.13890/j.issn.1000-128X.2024.01.243.

LI Qiang, HE Peiheng, ZHENG Jie, et al. Research on adaptability in horizontal curve negotiation of HTS maglev train[J]. Electric drive for locomotives,2024(3): 90-98. DOI：10.13890/j.issn.1000-128X.2024.01.243.

摘要

针对高温超导磁浮车刚性悬浮架曲线通过性差，文章提出了一种具有一定点头和摇头自由度的半解耦悬浮架结构，将高温超导的悬浮力和导向力简化为线性特性，建立了高温超导磁悬浮车辆的动力学理论模型，通过UM软件，在周期性激励的作用下，对理论模型进行了动力力学响应的仿真验证，证明了动力学理论模型的合理性。文章进一步利用UM软件分析了高温超导磁浮车的水平曲线通过性能，对比了悬浮架不同垂向扭转刚度、横向扭转刚度、空气弹簧垂向刚度对杜瓦的横向位移、垂向位移的影响。仿真结果表明，释放一定点头自由度和摇头自由度的半解耦悬浮架，能够更好地适应曲线轨道的线路弯曲和线路扭曲，减少了构架对悬浮系统的不利影响，充分发挥了高温超导钉扎效应的特性，提高了车辆的曲线通过性能，同时合理的空气弹簧刚度能够很好地抑制杜瓦的振动，使车辆运行平稳。最后提出了满足车辆安全运行的悬浮架方案，高温超导磁悬浮车辆曲线通过性能有明显的提升。

Abstract

To enhance the curve negotiation performance of high-temperature superconducting (HTS) maglev trains equipped with a rigid levitation frame

this paper proposes a semi-decoupled levitation frame structure with specific degrees of freedom in both pitching and yawing. Initially

a dynamic theoretical model for HTS maglev trains was established

utilizing linear characteristics derived by simplifying the levitation and guidance forces stemming from HTS. This theoretical model was confirmed rational following the validation through dynamic response simulations conducted using UM software under periodic excitations. Subsequently

UM software was further utilized to assess the horizontal curve-passing performance of HTS maglev trains. Furthermore

comparisons were made regarding the impacts of different vertical and lateral torsional rigidities of levitation frames

along with varying air spring vertical rigidities on Dewar lateral and vertical displacements. The simulation results indicate improved adaptability in the proposed semi-decoupled levitation frame with specific pitching and rolling degrees of freedom on curved and twisted track configurations. By reducing the adverse effects of the framework on the levitation system and maximizing the pinning effect characteristics of HTS

this approach demonstrates effective in enhancing the trains' curve-passing performance. Additionally

an appropriate air spring rigidity is also found a contributor to effectively suppressing Dewar vibration

thus further ensuring the operational quality of trains. This paper conclusively proposes a levitation system solution that aligns with the safety requirements of train operation

displaying a strong potential to improve the curve-passing performance of HTS trains.

关键词

高温超导磁悬浮悬浮架水平曲线UM仿真

Keywords

high-temperature superconducting (HTS) maglevlevitation framehorizontal curveUM simulation

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Advanced Drive Energy-Saving Technology Engineering Research Center, Southwest Jiaotong University

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