电磁永磁混合结构排斥力的特性  

作　　者：肖帅飞[1] 何培祥[1] 李庆东[1] 郭金全[1] 

机构地区：[1]重庆西南大学工程技术学院,重庆400716

出　　处：《科技创新导报》2010年第29期71-72,共2页Science and Technology Innovation Herald

基　　金：重庆市自然科学基金项目项目编号:CSTC;2008BB3090

摘　　要：在永磁体上加上螺线管的这种结构称为电磁永磁混合结构,这种结构可以调节部分磁场强度,从而调节所受力的大小。本文对混合结构与单体永磁体之间产生的排斥力分别进行了等效计算法和数值计算法计算,并进行了比较,结果表明等效计算法虽简单、易理解,但它是基于磁路的计算,因此计算误差太大。而数值计算法中的有限单元法虽繁锁,但它是其于有限元件分析,精确可靠。并利用ANSYS分别对混合式和纯电磁铁进行有限元分析,通过对比证明了混合悬浮系统在排斥力方面的优越性。Mixed structure of electromagnet and permanent magenet is formed by way of affixing a solenoid to the permanent magnet apparatus.This structure can not only regulation part of the magnetic field strength,but also adjust the size of the force suffered.This paper is engagedd in equivalent and numerical calculating of the repulsive force caused between the mixed structure and monomer permanent magnet,and their comparisons respectively,whose result shows the equivalent calculating method is simple and easily understandable,but it is based on the calculation of the magnetic circuit,so much calculation error.On the contrast,the calculating of finite element method is complicated,but it is a limited element of its analysis,accurate and reliable.And finite elment analysing of the mixed and unmixed electromagnet via ANSYS,their comparison certifies the superiority of mixed suspension system in the aspect of replusive powder.

关 键 词：电磁永磁混合 磁场排斥力 有限元分析 磁场感应强度 

分 类 号：TB97[一般工业技术—计量学]