北京交通大学学报2013，Vol.37Issue(1)：181-184,4.
大间隙磁流体密封的磁场有限元分析及实验验证
Magnetic field finite element analysis and experimental verification of magnetic fluid seal with large gap
摘要
Abstract
Magnetic field distribution of magnetic fluid sealing structure with the large sealing gap changed from 0. 4mm to 0. 8mm and the influence of the magnet amount on the sealing property are studied by the finite element method. The effect of large gap height on magnetic fluid seal with multiple magnetic source is studied by experimental method. The calculated results are analyzed and discussed, which show that the sealing property of multiple magnetic fluid sealing structure with large gap increases with the decrease of sealing gaps and the sealing structure with multiple magnetic source can significantly improve the magnetic fluid sealing capability. The magnetic flux leakage at the joint of magnet and pole piece and part of magnets which are not fully used result in the nonlinear relationship between the sealing property of the multiple magnetic fluid sealing structure and the sealing property of magnetic fluid sealing structure with single magnet.关键词
磁流体/密封/大间隙/数值计算Key words
magnetic fluid/ seal/ large gap/ numerical calculation分类
通用工业技术引用本文复制引用
杨小龙,李德才,杨文明,邢斐斐,崔红超..大间隙磁流体密封的磁场有限元分析及实验验证[J].北京交通大学学报,2013,37(1):181-184,4.基金项目
国家自然科学基金资助项目(M08A30160) （M08A30160）
