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| 径向磁化的多环嵌套永磁轴承轴向磁力解析模型 | |
| 引用本文： | 田录林,李言,田琦,李知航.径向磁化的多环嵌套永磁轴承轴向磁力解析模型[J].计算力学学报,2010,27(2):379-384. |
| 作者姓名： | 田录林 李言 田琦 李知航 |
| 作者单位： | 1. 西安理工大学,水电学院,西安,710048 2. 西安理工大学,机仪学院,西安,710048 3. 西北大学,数学系,西安,710069 4. 西安电子科技大学,通讯工程学院,西安,710071 |
| 基金项目： | 国家自然科学基金(50279047);浙江省自然科学基金(Y104413)资助项目. |
| 摘 要： | 为了解决径向磁化双环永磁轴承轴向磁力偏小的问题,设计了径向磁化多环嵌套永磁轴承新结构。基于磁路及虚功原理法,结合径向磁化多环嵌套永磁轴承结构特点及线性叠加原理,建立了径向磁化多环嵌套永磁轴承轴向磁力解析模型。模型表明:径向磁化多环嵌套永磁轴承轴向磁力与磁环剩磁平方成正比,磁力随磁环间隙的增大而减小,随磁环数的增大而增大;在正常轴向工作范围内,轴向磁力随轴承轴向偏移的增大而增大。模型计算结果与有限元计算结果基本吻合。对比计算说明:径向磁化多环嵌套永磁轴承轴向磁力远大于由原多嵌套磁环所构成的若干双环永磁轴承轴向磁力之和。 |
| 关 键 词： | 径向磁化 磁环 永磁轴承 解析模型 轴向磁力 |
| 收稿时间： | 2008/5/21 0:00:00 |
Axial magnetic force analytical model for radial magnetization multi-annular nesting permanent magnetic bearings |
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| TIAN Lu-lin,LI Yan,TIAN Qi and LI Zhi-hang.Axial magnetic force analytical model for radial magnetization multi-annular nesting permanent magnetic bearings[J].Chinese Journal of Computational Mechanics,2010,27(2):379-384. | |
| Authors: | TIAN Lu-lin LI Yan TIAN Qi and LI Zhi-hang |
| Institution: | 1.College of Water and Electricity Engineering/a>;Xi'an University of Technology/a>;Xi'an 710048/a>;China/a>;2.College of Mechanics and Instrument Engineering/a>;3.Department of Math/a>;Northwest University/a>;Xi'an 710069/a>;4.College of Communication Engineering/a>;Xidian University/a>;Xi'an 710071/a>;China |
| Abstract: | To overcome small magnetic force for radial magnetization bi-annular PMB(permanent magnetic bearings),the new construction of radial magnetization multi-annular nesting PMB was designed.Based on magnetic circuit and the differential coefficients of magnetic field energy to virtual displacement method,connected with the structure character of multi-annular nesting PMB and linearity addition principle,the axial magnetic force analytical model of radial magnetization multi-annular nesting PMB was constructed.T... |
| Keywords: | radial magnetization magnetic annulus PMB analytical model axial magnetic force |
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