摘要
悬浮电磁铁是磁悬浮列车实现悬浮运行的重要部件,其结构性能直接影响磁悬浮列车的运行安全。针对磁悬浮列车悬浮电磁铁结构,以改进电磁铁结构和优化悬浮控制难度为研究目标,结合电磁铁结构所受的电磁力,分析电磁铁极板沿列车运动方向的变形,提出一种电磁铁结构的改进方法:以有限元方法对待改进模型进行结构变形仿真分析;通过多项式最小二乘拟合方法,拟合分析所得的离散变形数据;根据拟合曲线,改进原模型为预凹型结构。最后对改后模型进行验证对比仿真分析,分析结果表明:磁悬浮列车运行时,改进模型沿列车运动方向的悬浮间隙较原模型小,有效降低了悬浮控制难度。
Suspension electromagnet is an important part of the maglev train. The structural performance of maglev train directly affects the operational safety of maglev train.The suspension electromagnet structure is studied to improve the structure of electromagnet and reduce the difficulty of levitation control. Based on the electromagnetic force, deformation of electromagnet along the direction of train movement are analyzed and an optimization method is proposed. The method is as below:using finite element software for structural deformation simulation analysis,fitting deformation curve from finite element analysis results and optimizing the model according to curve fitting. Finally,the modified model is analyzed for verifying.The results show that when the maglev train is running,the levitation gap of themodified model along the direction of train movement is smaller than the original model,which effectively reduces the levitation control difficulty.
作者
薛齐豪
刘放
梁成
徐航
XUE Qi-hao;LIU Fang;LIANG Cheng;XU Hang(School of Mechanical Engineering,Southwest Jiaotong University,Sichuan Chengdu610031,China)
出处
《机械设计与制造》
北大核心
2020年第5期202-205,共4页
Machinery Design & Manufacture
基金
四川省科技计划项目(2016HH0032)。
关键词
悬浮电磁铁
弯曲变形
曲线拟合
有限元
结构优化
Suspension Electromagnet
Deformation
Curve-Fitting
Finite Element
Structural Optimization
作者简介
薛齐豪,(1994-),男,湖北荆州人,硕士研究生,主要研究方向:磁悬浮列车结构;刘放,(1974-),男,四川成都人,博士后,副教授,主要研究方向:磁浮列车与磁浮技术悬浮控制技术。
