磁悬浮硬盘转子机电耦合动力学分析  

Mechanical and Electronic Coupling Dynamic Analysis of Hard Disk Rigid Rotor Suspended by Active Magnetic Bearings

作　　者：刘明尧[1] 胡业发[1] 周祖德[1] 

机构地区：[1]武汉理工大学机电工程学院

出　　处：《机电工程》2005年第6期56-59,共4页Journal of Mechanical & Electrical Engineering

基　　金：国家973项目(国科基字[2001]50号);湖北省数字制造重点实验室基金项目

摘　　要：为研究磁悬浮硬盘转子的动力学特性,建立了一种基于状态空间的统一的动力学模型,同时将磁力轴承为弹簧阻尼支承系统建立简化的转子动力学模型,通过两种模型的计算结果分析,机、电、磁、控制相互耦合的作用,对磁悬浮硬盘转子系统的特征值有较大的影响。Hard disk rotor suspended by active magnetic bearings consists of stator, rotor, magnetic actuator, sensor, controller and power amplifier. In order to research mechanical and electronic coupling dynamic behaviour of hard disk rotor, not only the dynamic model of rotor is needed, but also the model of stator and magnetic bearing must be incorporated into the model of the rotor. The uniform coupling dynamic model based on state space is set up. The model includes the interaction among magnetic actuator, controller, power amplifier and mechanical structure. At the same time, a active magnetic bearing can be simplified for spring-damping system. A simplified dynamic model is set up. The simulation showed that mechanical and electronic coupling action affected eigenvalue of hard disk rigid rotor suspended by active magnetic bearings.

关 键 词：磁力轴承 转子 硬盘 

分 类 号：TH133.3[机械工程—机械制造及自动化] TH113