摘要
建立了三维磁轴承模型 ,采用三维有限元分析方法 (FEM )分析了转子磁体混合磁轴承转子处于不同位置时的磁场分布及力 -电流关系 ,结合特性曲线阐述了其分布形状形成的原因 ,分析计算并比较了无偏置电流磁轴承、电励磁偏置磁轴承和永磁偏置混合磁轴承这 3种不同磁轴承的力 -电流线性控制特性 .通过分析发现 。
The 3-D model of the magnetic bearing is given. The magnetic field distributions of magnetic bearing with rotor and its force-current relations under different conditions are analyzed by 3-D FEM(finite element method). The formation of characteristic curve is explained. The force-current linear control characteristics of three different kinds of magnetic bearings are calculated and compared. Results make known that this magnetic bearing has lower magnetic coupling and good linear control characteristic.
出处
《山东大学学报(工学版)》
CAS
2005年第1期47-50,63,共5页
Journal of Shandong University(Engineering Science)
基金
863国家高技术航天领域项目 (863 2 2 4 9B)
关键词
混合磁轴承
三维有限元分析
气隙磁通密度
磁场耦合
电磁力
hybrid magnetic bearing
3-D finite element method(FEM)
air-gap flux density
magnetic field coupling
electromagnetic force