| 新型永磁偏置轴向磁轴承的磁力特性 |
| |
| 引用本文： | 刘虎,房建成.新型永磁偏置轴向磁轴承的磁力特性[J].机械工程学报,2010,46(8). |
| |
| 作者姓名： | 刘虎 房建成 |
| |
| 作者单位： | 北京航空航天大学仪器科学与光电工程学院,北京,100191;北京航空航天大学新型惯性仪表与导航系统技术国防重点学科实验室,北京,100191 |
| |
| 基金项目： | 国防预先研究资助项目(51309030103) |
| |
| 摘 要： | 研究一种集成转子径向扭转与轴向平动控制功能的新型永磁偏置轴向磁轴承的磁力特性,以解决磁轴承系统的轴向尺寸和精度之间的矛盾。采用等效磁路法进行磁轴承的磁路建模,在建立磁极气隙表达式的基础上采用积分型方法进行磁阻计算以提高计算精度,并根据磁路模型给出磁轴承磁力的积分型计算公式,得到轴向磁轴承闭环系统的磁力特性曲线。对某飞轮用磁轴承系统的分析表明:磁轴承磁力与磁极气隙和控制电流间具有良好的线性关系,且各控制通道近似解耦,与典型磁轴承结构相比,利于磁轴承系统控制精度的提高和轴向尺寸的减小,适用于磁悬浮飞轮系统。
|
| 关 键 词： | 轴向磁轴承 永磁偏置 磁力特性 等效磁路 积分型方法 |
Magnetic Force Characteristics of A Novel Permanent Magnet Biased Axial Magnetic Bearing |
| |
| LIU Hu,FANG Jiancheng.Magnetic Force Characteristics of A Novel Permanent Magnet Biased Axial Magnetic Bearing[J].Chinese Journal of Mechanical Engineering,2010,46(8). |
| |
| Authors: | LIU Hu FANG Jiancheng |
| |
| Affiliation: | 1.School of Instrument Science and Opto-electronics Engineering/a>;Beihang University/a>;Beijing 100191/a>;2.Novel Inertial Instrument & Navigation System Technology Key Laboratory of Fundamental Science for National Defense/a>;Beijing 100191 |
| |
| Abstract: | To solve the contradiction between axial dimension and precision of magnetic bearing system,the magnetic force characteristics of a novel permanent magnet biased axial magnetic bearing which integrates rotor radial torsion with axial translation control function is researched.Equivalent magnetic circuit method is used to carry out modeling of magnetic circuit of magnetic bearing.Integral calculation formula of magnetic force of magnetic bearing is given on the basis of the magnetic circuit model,the magneti... |
| |
| Keywords: | Axial magnetic bearing Permanent magnet bias Magnetic force characteristic Equivalent magnetic circuit Integral method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
