基于FBG的磁力轴承气隙磁通密度动态测量及分析

中国机械工程 ›› 2011, Vol. 22 ›› Issue (22): 2677-2681.

基于FBG的磁力轴承气隙磁通密度动态测量及分析

丁国平;周祖德;胡业发

武汉理工大学，武汉，430070

出版日期:2011-11-25 发布日期:2011-12-12
基金资助:
中央高校基本科研业务费专项资金资助项目(2010-Ia-051)；武汉市青年科技晨光计划资助项目(201050231040)
Fundamental Research Funds for the Central Universities( No. 2010-Ia-051 )

FBG Based Air-gap Magnetic Flux Density Dynamic Measurement and Analysis

Ding Guoping;Zhou Zude;Hu Yefa

Wuhan University of Technology,Wuhan,430070

Online:2011-11-25 Published:2011-12-12
Supported by:

Fundamental Research Funds for the Central Universities( No. 2010-Ia-051 )

摘要/Abstract

摘要：

在磁力轴承转子3种转速（1080r/min、1320r／min和1500r/min）以及6种线圈电流（0.5A、1A、1.5A、2.0A、2.5A和2.95A）的条件下,通过光纤布喇格光栅传感装置对磁力轴承定子与转子之间的气隙磁通密度进行了动态测量，并对测量结果进行了FFT分析，测量结果与有限元计算结果达到一定的一致性,验证了FBG传感装置对旋转状态下气隙磁通密度的测量具有可行性。

关键词:

磁力轴承, 光纤布喇格光栅(FBG), 气隙磁通密度, 动态测量

Abstract:

A FBG based magnetic bearing air-gap magnetic flux density measurement test system was constructed,air-gap magnetic flux density was measured through a FBG sensing component under 3 rotating speeds(1080r/min,1320r/min and 1500r/min) and 6 coil-currents(0.5A,1A,1.5A,2.0A,2.5A and 2.95A),

the measurement results were analyzed with FFT method.It is concluded that there is virtually consistency between the measurement results and finite element calculations and it is feasible to utilize the FBG sensing component for dynamic measurement of air-gap magnetic flux density.

Key words:

magnetic bearing, fibre bragg grating(FBG), air-gap magnetic flux density, dynamic measurement

中图分类号:

TH136
TM937

丁国平, 周祖德, 胡业发.

基于FBG的磁力轴承气隙磁通密度动态测量及分析

[J]. 中国机械工程, 2011, 22(22): 2677-2681.

DING Guo-Beng, ZHOU Jie-De, HU Ye-Fa.

FBG Based Air-gap Magnetic Flux Density Dynamic Measurement and Analysis

[J]. China Mechanical Engineering, 2011, 22(22): 2677-2681.

[1]	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.
[2]	王洪涛, 郭垒磊, 万力, 于溯源. 磁力轴承支承刚性转子的临界转速计算 [J]. 中国机械工程, 2010, 21(8): 904-907.