• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2026, Vol. 62 ›› Issue (7): 295-307.doi: 10.3901/JME.260379

• 机械动力学 • 上一篇    

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基于电磁-热-力耦合模型的全超导磁浮轴承振动响应特性研究

李婧, 曾明睿, 张智博, 喻海洋, 杨文姣, 龚天勇, 周鹏博, 马光同   

  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
  • 收稿日期:2025-04-13 修回日期:2025-09-01 发布日期:2026-05-25
  • 作者简介:李婧(通信作者),女,1982年出生,博士,副研究员,硕士研究生导师。主要研究方向为高温超导磁悬浮应用技术,超导直线电机和直线轨道涡流制动。E-mail:jingli324@163.com
    曾明睿,男,1998年出生,硕士研究生。主要研究方向为列车制动动力学,轴承系统动态性能和涡流制动。E-mail:mingruiz15@outlook.com
  • 基金资助:
    国家自然科学基金(52277018)、四川省自然科学基金(2022NSFSC0447)、国家重点实验室自主课题(2023TPL-T07)和中央高校基本科研基金(2682024ZTPY039,2682024CX052)资助项目。

Study on Vibration Response Characteristics of Full Superconducting Maglev Bearing Based on the Electromagnetic-heat-force Coupled Model

LI Jing, ZENG Mingrui, ZHANG Zhibo, YU Haiyang, YANG Wenjiao, GONG Tianyong, ZHOU Pengbo, MA Guangtong   

  1. State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031
  • Received:2025-04-13 Revised:2025-09-01 Published:2026-05-25

摘要: 超导磁浮轴承具有无接触、能耗低、寿命长等优势,已被应用于飞轮储能、运输车辆等机械系统中,全超导磁浮轴承产生的背景磁场远高于传统磁体的磁场等级,由此导致的动态稳定性问题更为显著,需要针对全超导磁浮轴承的动态稳定性的影响因素和作用规律展开深入研究。通过建立的高温超导磁浮轴承的电磁-热-力耦合的振动模型,介绍了提升背景磁场与悬浮能力的优化结构,研究了全超导磁浮轴承、混合定子磁浮轴承以及转子参数优化后混合定子磁浮轴承的振动响应,分析了在自由振动、简谐与脉冲典型激励下轴承系统的悬浮力-位移关系、内部温升、固有频率等动态参数的变化情况,探讨了外界激励对系统稳定性的影响规律,为全超导混合定子磁浮轴承的应用奠定了理论基础。

关键词: 超导磁浮轴承, 振动特性, 动态稳定性, 典型激励

Abstract: Superconducting magnetic levitation bearings, which have the advantages of non-contact, low energy consumption and long life, have been applied in mechanical systems such as flywheel energy storage and transport vehicles. Superconducting magnetic levitation bearings can generate magnetic field much higher than traditional magnets, resulting in more significant dynamic stability problems. It is necessary to conduct research on the influencing factors and action rules of the dynamic stability of superconducting magnetic levitation bearings. An electromagnetic, thermal and mechanical coupling numerical model of HTS magnetic suspension bearings is established, and the optimized structure to improve the background magnetic field and suspension capacity is introduced. The vibration response characteristics of fully superconducting magnetic bearings, hybrid stator magnetic bearings and magnetic bearings with optimized parameters for rotor bulks are studied. The dynamic parameters such as levitation forces-displacement relationship, temperature rise and natural frequency of the system under free vibration, harmonic and pulse excitation are analysed. The influence of external excitation on the overall stability of the system is discussed. It lays a theoretical foundation for the application of full superconducting hybrid stator maglev bearings.

Key words: superconducting maglev bearing, vibration characteristics, dynamic stability, typical external excitation

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