China Mechanical Engineering ›› 2026, Vol. 37 ›› Issue (5): 1245-1253.DOI: 10.3969/j.issn.1004-132X.2026.05.025

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Research on Effects of Medium-low Speed Maglev Operation Speed and Levitation Module Length on Stability of Vehicle Crossing Turnouts

ZHUANG Xubin1(), YAN Jiahai2, LIU Yu3, ZHANG Min1(), MA Weihua1   

  1. 1.State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu,610031
    2.School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031
    3.CRRC Tangshan Co. ,Ltd. ,Tangshan,Hebei,063000
  • Received:2025-04-20 Online:2026-05-25 Published:2026-06-09
  • Contact: ZHANG Min

中低速磁浮运行速度与悬浮模块长度对车辆过岔稳定性影响研究

庄绪彬1(), 颜佳海2, 刘宇3, 张敏1(), 马卫华1   

  1. 1.西南交通大学轨道交通运载系统全国重点实验室, 成都, 610031
    2.西南交通大学机械工程学院, 成都, 610031
    3.中国唐山机车车辆有限公司, 唐山, 063000
  • 通讯作者: 张敏
  • 作者简介:庄绪彬,男,1998年生,硕士研究生。研究方向为中低速磁浮车辆动力学研究。E-mail:z14753939032@163.com
    张敏*(通信作者),女,1987年生,助理研究员。研究方向为中低速磁浮及直线电机研究。E-mail:zm@swjtu.edu.cn
  • 基金资助:
    国家自然科学基金(52102442);国家重点研发计划(2023YFB4302103);国家重点研发计划(2024YFB4303202-02)

Abstract:

In order to investigate the influences of the suspension module length on the vehicle dynamics performance, and to explore the module length that met the requirements of dynamics stability and vehicle economy, through the multi-body dynamics software SIMPACK, a four suspension frame mid-mounted magnetic levitation vehicle dynamics model was established, and the dynamics responses of the vehicle passing through the turnouts were analyzed under different suspension module lengths. The results show that: the length of the suspension module and the speeds of the turnouts jointly affect the stability of the vehicles passing the turnouts. The fluctuation of the suspension gap may not exceed 4 mm as a technical indicator, in order to ensure that the vehicle may safely and stably pass the turnouts, when the suspension module length is as 2.8~3.2 m, the vehicle lateral speed may not exceed 35 km/h. When the length of the suspension module is increased to 3.6 m, the maximum speed of the vehicle passing the turnouts is decreased to 25 km/h. When the length of the suspension module is reduced to 2.4 m, although the manufacturing cost may be reduced to a certain extent, the vertical force area between the electromagnet and the vehicle body may also reduce accordingly, which leads to the fluctuation of the electromagnet suspension gap increasing, and then restricts the vehicle's speed of the turnouts, preventing the vehicles from exceeding 30 km/h. Through the in-depth study of the relationship between the levitation module length and the lateral overrun speed, the threshold value of the levitation module length is obtained, which provides a reference for the design of the levitation module length of the low and medium-speed maglev vchicles.

Key words: medium-low speed maglev vehicle, suspension module, turnout, dynamics response, suspension gap

摘要:

为探究悬浮模块长度对车辆动力学性能的影响,探寻满足动力学稳定性和车辆经济性的模块长度,通过多体动力学软件SIMPACK建立了四悬浮架中置式磁浮车辆动力学模型,分析了不同悬浮模块长度下车辆经过道岔时的动力学响应。研究结果表明:悬浮模块长度和过岔速度共同影响车辆的过岔稳定性;以悬浮间隙波动不超过4 mm为技术指标,为确保车辆能够安全、稳定地通过道岔,当悬浮模块长度在2.8~3.2 m之间时,车辆侧向过岔速度不宜超过35 km/h;当悬浮模块长度增大至3.6 m时,车辆侧向最大过岔速度降低至 25 km/h;当悬浮模块长度减小至2.4 m时,虽能在一定程度上降低制造成本,但电磁铁与车体之间的垂向受力面积也会相应减小,导致电磁铁悬浮间隙的波动加剧,进而限制了车辆的过岔速度,使其不能超过30 km/h。通过对悬浮模块长度与侧向过岔速度匹配关系的深入研究,得到了悬浮模块长度的阈值,可为中低速磁浮列车悬浮模块长度的设计提供参考。

关键词: 中低速磁浮列车, 悬浮模块, 道岔, 动力学响应, 悬浮间隙

CLC Number: