磁悬浮模块化复合永磁磁轨稳定性分析  

Stability analysis of maglev modular composite permanent magnetic rail

作　　者：张则羿 骆智超 ZHANG Ze-yi;LUO Zhi-chao(School of Electrical Engineering and Automation,Jiangxi University of Science and Technology,Ganzhou 341000,China;Institute of New Materials,Guangdong Academy of Sciences,Guangzhou 510650,China)

机构地区：[1]江西理工大学电气工程与自动化学院,江西赣州341000 [2]广东省科学院新材料研究所,广东广州510650

出　　处：《磁性材料及器件》2024年第1期49-53,共5页Journal of Magnetic Materials and Devices

基　　金：江西省教育厅科学技术研究重点项目(GJJ210804);江西理工大学高层次人才科研启动项目(205200100476)。

摘　　要：永磁材料受制于其粉末冶金制备工艺,暂不能实现连续磁轨的生产。现有永磁磁轨多采用永磁体依次排列的单层结构,然而相邻永磁体之间存在较大的磁排斥力,不利于永磁体的紧密排列,并严重威胁到永磁磁轨的稳定性和安全性。模块化复合永磁磁轨采用“两层永磁体+一层铁质底板”的复合结构,模块可以通过公端和母端的设计轻松实现组装和拆卸,并优化其上方磁场强度沿轴向的均匀分布,有利于磁浮列车的平稳行驶。通过对复合永磁磁轨模块上六个典型位置永磁体的受力分析,揭示了静摩擦力平衡磁轨内力以增强磁轨稳定性的作用机理和条件,并对模块化复合永磁磁轨的应用提出了优化方案。Due to its powder metallurgy production process,permanent magnetic materials are currently unable to manufacture continuous magnetic rail.Existing magnetic rails mostly adopt a single–layer structure with magnets arranged in sequence.However,there is a large magnetic repulsive force between adjacent magnets,which is not conducive to the close arrangement of magnets and seriously threatens the stability and safety of the magnetic rail.The modular composite permanent magnetic rail adopts a composite structure of“two layers of permanent magnets+one layer of ferromagnetic plate”.The module can be easily assembled and disassembled through the design of the male and female ends,and the uniform distribution of magnetic field strength along the axial direction above it is optimized,which brings benifits to the smooth operation of the maglev train.By analyzing the force acting on six typical positions of magnets on the composite permanent magnetic rail module,the observation reveals the mechanism and conditions of static friction balancing internal force to enhance the stability of the magnetic rail,and leads to an optimization plan for the application of modular composite permanent magnetic rail.

关 键 词：永磁磁轨 模块化方案 受力分析 稳定性 

分 类 号：TM144[电气工程—电工理论与新技术]