• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2025, Vol. 61 ›› Issue (23): 120-133.doi: 10.3901/JME.2025.23.120

• 机械动力学 • 上一篇    

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高温超导磁通钉扎悬浮列车改进型悬浮架系统参数可行域分析

张明亮1,2,3, 段佳琪1, 杨新梦1, 刘鹏飞4, 张连朋1   

  1. 1. 石家庄铁道大学机械工程学院 石家庄 050043;
    2. 西南交通大学轨道交通运载系统全国重点实验室 成都 610031;
    3. 兰州交通大学光电技术与智能控制教育部重点实验室 兰州 730070;
    4. 石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室 石家庄 050043
  • 收稿日期:2024-02-03 修回日期:2024-12-19 发布日期:2026-01-22
  • 作者简介:张明亮,男,1984年出生,博士。副教授,硕士研究生导师,主要研究方向为磁悬浮技术和车辆动力学。E-mail:zmlhit@126.com
    刘鹏飞(通信作者),男,1986年出生,博士,教授,博士研究生导师。主要研究方向为车辆动力学。E-mail:lpfswjtu@163.com
  • 基金资助:
    河北省高等学校科学技术研究(ZD2022064);国家自然科学基金青年(52205064);轨道交通运载系统全国重点实验室(西南交通大学)开放课题(TPL2010);光电技术与智能控制教育部重点实验室(兰州交通大学)开放课题(KFKT2020-7);河北省自然科学基金面上(A2022210024)资助项目

Parameter Feasible Region Analysis of Improved Suspension System for High Temperature Superconducting Flux Pinning Suspension Train

ZHANG Mingliang1,2,3, DUAN Jiaqi1, YANG Xinmeng1, LIU Pengfei4, ZHANG Lianpeng1   

  1. 1. School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043;
    2. State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031;
    3. Key Laboratory of Opto-technology and Intelligent Control of Ministry of Education, Lanzhou Jiaotong University, Lanzhou 730070;
    4. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043
  • Received:2024-02-03 Revised:2024-12-19 Published:2026-01-22

摘要: 为了增大悬浮力和提升安全性,设计了一种用于高温超导磁通钉扎悬浮列车的抱轨式改进型悬浮架系统。首先,基于冻结镜像模型和高温超导体的混合磁场特性提出一种等效处理高温超导体的方法,利用实验数据验证了该方法的正确性,使用该方法得到改进型悬浮架系统的悬浮力数据,采用三次多项式函数进行拟合,建立悬浮力经验公式的数学模型。其次,基于数学模型建立改进型悬浮架系统的动力学方程,采用多尺度法推导系统响应的近似解析解,分析系统参数对振动响应的影响。最后,使用Melnikov方法对系统的混沌阈值进行推导,分析系统参数与运行参数对混沌阈值的影响。结果表明单位质量阻尼与单位质量线性刚度在一定范围内,可同时满足自由振动、主共振与不发生混沌运动的指标要求,且列车的运行速度对自由振动和主共振的影响较为显著,对系统的混沌阈值影响不大。研究成果为磁悬浮列车悬浮架系统的设计和确定合理的运行条件提供理论支撑。

关键词: 改进型悬浮架, 非线性振动, 参数可行域, 混沌

Abstract: In order to increase the suspension force and improve the safety, the rail-holding improved suspension frame system for high temperature superconducting flux pinned suspension train is designed. Firstly, an equivalent processing method for high temperature superconductor is proposed based on the frozen mirror model and the hybrid magnetic field characteristics of high temperature superconductor, and the correctness of the method is verified by way of the experimental data. The suspension force data of the improved suspension system are obtained by the equivalent processing method, and the mathematical model of the suspension force empirical formula is established by using the cubic polynomial function. Secondly, based on the mathematical model, the dynamic equation of the system is established and the approximate analytical solution of the system response is solved, and the influence of the system parameters on the vibration response is analyzed. Finally, the Melnikov method is used to derive the chaotic threshold of the system and the influence of system parameters and operating parameters on the chaotic threshold is discussed. The results show that the damping pre mass and the linear stiffness pre mass are within a certain range, which can meet the response index requirements of free vibration, main resonance and non-chaotic motion synchronously. The running speed of the train has a significant influence on free vibration and main resonance, and has little effect on the chaotic threshold of the system. This manuscript provides the theoretical support for designing the suspension frame system of the magnetic suspension train and determining the appropriate operating conditions.

Key words: improved suspension frame, nonlinear vibration, parameter feasible region, chaos

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