Measurement Method of Stiffness for Magnetic Bearings 

Abstract

Abstract:

There exist two different definitions of stiffness in academic study of magnetic bearings.Two definitions of stiffness are different from the aspect of rotor force analysis and control transfer function.In allusion to the two different definitions of stiffness,a measurement method of stiffness for magnetic bearings was given and the experimental measurement system of the magnetic bearing stiffness was designed.The experimental system can measure the stiffness of magnetic bearings when the rotor in all the states of static suspension,rigid rotation and flexible rotation. 

Key words: magnetic bearing, stiffness, measurement method, measurement device

摘要：

在磁力轴承研究中关于磁力轴承刚度存在两种不同的定义,从转子受力分析和控制系统传递函数角度看,这两种刚度定义之间存在差异。针对两种不同的刚度定义分别给出了其测量方法,并设计了磁力轴承刚度测量的实验系统。该实验系统可以实现磁悬浮转子静态悬浮、刚性旋转和柔性旋转工作状态下的刚度测量。

关键词:

磁力轴承, 刚度, 测量方法, 测量装置

CLC Number:

TH113

WANG Xiao-Guang, GAO Chang-Sheng.

Measurement Method of Stiffness for Magnetic Bearings 

[J]. China Mechanical Engineering, 2010, 21(8): 889-892,907.

王晓光, 高长生.

磁力轴承刚度的实验测量方法

[J]. 中国机械工程, 2010, 21(8): 889-892,907.

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