中国电机工程学报2011，Vol.31Issue(17)：91-98,8.
轴向力偏转五自由度永磁偏置磁轴承及磁路解耦设计
Axial Force Tilting Permanent-magnet-biased Magnetic Bearing With Five Degrees of Freedom and Magnetic Field Decoupling Design
摘要
Abstract
To satisfy the requirement of the tilting moment ability and precision of magnetically suspended flywheel on spacecraft, a novel permanent-magnet- biased magnetic bearing with five degrees of freedom (5-DOF-PMB) was presented, which applied axial force to control rotor tilting motion to obtain high stability with improved intrinsic modal of rotor, and was also beneficial for increasing system-integrated-level. It was verified by finite element analysis (FEA) simulating that 5-DOF-PMB designed based on the 15N-m-s reaction flywheel could support full loads on all degrees of freedom simultaneously. To satisfy the requirement of high control precision of rotor vibration on large excursion, magnetic field decoupling design for 5-DOF-PMB was accomplished. It was verified by equivalent-magnetic-circuit method and FEA simulating that the magnetic field coupling between two radial channels was weakened in two orders after decoupling design for 5-DOF-PMB. Further, a universal method to decouple magnetic field of PMB was generalized.关键词
磁轴承/永磁偏置/五自由度/磁路解耦Key words
magnetic bearings/ permanent magnet bias (PMB)/ five degrees of freedom (5-DOF)/ magnetic field decoupling分类
机械制造引用本文复制引用
王曦,房建成,樊亚洪,孙津济..轴向力偏转五自由度永磁偏置磁轴承及磁路解耦设计[J].中国电机工程学报,2011,31(17):91-98,8.基金项目
国家杰出青年科学基会(60825305):国家重点基础研究发展计划项目(973 项目)(2009CB72400103). （60825305）
