圆锥电磁轴承耦合特性研究  

Research on the Coupling Characteristics of the Conical Magnetic Bearing

作　　者：杨静[1] 虞烈[2] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,陕西西安710048 [2]西安交通大学轴承研究所,陕西西安710049

出　　处：《西安理工大学学报》2008年第4期401-406,共6页Journal of Xi'an University of Technology

基　　金：国家自然科学基金资助项目(50275116)

摘　　要：分析了圆锥电磁轴承的几何耦合效应以及电流耦合效应,推导了圆锥电磁轴承特有的力矩耦合特性,给出了圆锥电磁轴承动力学特性的计算方法。在此基础上,计算了轴承锥角、宽径比以及极角比对圆锥电磁轴承静特性基础解的影响。结果表明,圆锥电磁轴承静态力与轴承宽径比成线性关系,但轴承力矩与宽径比之间是非线性的;圆锥电磁轴承极角比越大,磁极面积越小,轴承静态力以及力矩都会减小。The geometry coupling effect and current coupling effect of conical magnetic bearings are analyzed. The torque coupling characteristics is deduced, and the calculation method of dynamics property of conical magnetic bearings is given in this paper. On the basis of these analyses, the influences of the bearing angle, the width-radius ratio, and pole-angle ratio on basic solution of static characteristics of conical magnetic bearing are calculated. The results show that the static force is linear to width -radius ratio, and the torque is nonlinear to the width-radius ratio of conical magnetic bearings. The bigger poleangle ratio of conical magnetic bearings, the smaller magnetic pole area, and the static force and torque of bearings will reduce as well.

关 键 词：圆锥电磁轴承 电流耦合 几何耦合 动力学特性 

分 类 号：TH133.3[机械工程—机械制造及自动化]