调磁式异步磁力联轴器Halbach阵列结构磁路有限元分析  

Finite element analysis of Halbach array circuit of field-modulated asynchronous magnetic coupling

作　　者：杨超君[1] 徐燕飞[2] 孔令营[1] 陈志鹏[1] 卢丹[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013 [2]加西贝拉压缩机有限公司,浙江嘉兴314000

出　　处：《磁性材料及器件》2014年第3期5-9,共5页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(51075189);江苏省自然科学基金资助项目(BK20131254)

摘　　要：为提升调磁式异步磁力联轴器的传动性能,将Halbach永磁阵列应用于该类磁力联轴器中。利用Ansoft有限元软件对其进行仿真,得到了对应不同永磁阵列的联轴器磁感应强度分布云图、磁力线分布图及输出转矩随时间的变化曲线。研究结果表明,当采用Halbach阵列时,磁力联轴器的主磁路外转子不需要轭铁,可减小机构的转动惯量;相比传统阵列,Halbach阵列可明显提高联轴器的输出转矩。相比采用传统阵列磁体的联轴器,对应90°、60°、45°Halbach阵列的联轴器可使输出转矩分别提高34.1%、52.3%、56.8%。In order to improve the transmission performance of field-modulated asynchronous magnetic coupling, the Halbach permanent magnet array was applied to the coupling. The distribution diagrams of magnetic flux density, magnetic force lines and curve of output torque versus time in field-modulated asynchronous magnetic coupling with different permanent magnet arrays were obtained by using Ansoft software for finite element simulation. The research result shows that for coupling with Halbach array, the main magnetic circuit does not need yoke iron of outer rotor, thus the moment of inertia of the coupling can be reduced; the output torque is larger than that of coupling with traditional magnet array. For 90°, 60° and 45° Halbach array, the output torque of the couplings increases by 34.1%, 52.3% and 56.8%, respectively.

关 键 词：调磁式异步磁力联轴器 HALBACH阵列 有限元分析 输出转矩 

分 类 号：TH133.4[机械工程—机械制造及自动化] TM144[电气工程—电工理论与新技术]