永磁体结构对高温超导推力轴承静态特性的影响  

Effect of permanent magnet's structure on static behavior of a superconducting thrust bearing

作　　者：祝长生[1] 纪德志[1] 

机构地区：[1]浙江大学电气工程学院,杭州310027

出　　处：《低温与超导》2006年第4期231-235,241,共6页Cryogenics and Superconductivity

基　　金：浙江省自然科学基金(R104129);国家自然科学基金(10472101);浙江省教育厅科研项目

摘　　要：基于商用电磁场有限元软件以及M e issner效应假设,提出了对由块状高温超导体和永磁体组成的高温超导推力轴承静态特性进行分析的方法,分析了永磁体的结构对高温超导推力轴承悬浮力的影响。结果发现:永磁体的结构及磁极排列方式对高温超导推力轴承悬浮力的影响很大,适当地选择永磁体的结构和磁极排列方式可以显著地提高高温超导推力轴承的悬浮力。Based on commercial finite element software and assumption of a total Meissner effect, the analysis method for static behavior of a high temperature superconducting thrust hearing（HTSCTB） consisted of a hulk high temperature superconductor and a permanent magnet was presented. The effect of permanent magnet＇ s structures on the static behavior of the superconducting thrust hearing was studied. It is shown that the magnet pole arrangement and the structure of the permanent magnets have a great effect on the levitation force of the high temperature superconducting thrust bearing. The levitation force of the high temperature thrust superconducting bearing can be increased by properly arranging the magnet poles and choosing the structure of the permanent magnets.

关 键 词：高温超导 超导轴向轴承 静态受力 有限元法 迈斯纳效应 

分 类 号：TM26[一般工业技术—材料科学与工程] TM312[电气工程—电工理论与新技术]