圆柱形永磁体磁场建模及仿真研究  

Modeling and Simulation for Cylinder Permanent Magnetic Field

作　　者：周恩权 郑仲桥[2] 张燕红[2] 王奇瑞[3] 

机构地区：[1]海安交睿机器人科技有限公司,江苏南通226000 [2]常州工学院,江苏常州213032 [3]江苏大学现代农业装备与技术教育部重点实验室,江苏镇江212013

出　　处：《河南科技》2017年第21期139-143,共5页Henan Science and Technology

基　　金：江苏省自然科学基金资助项目(BK20151182)

摘　　要：为了寻求圆柱形永磁体磁场的简便算法,基于永磁体等效电流模型,把永磁体被磁化的效果视为永磁体表面存在面电流产生的磁场,得到了永磁体磁场的空间分布规律,推导出圆柱体型永磁体空间的磁感应强度解析公式,并通过MATLAB多重数值积分功能求出圆柱形永磁体的空间磁感应强度。结果表明:计算值和实验测量值基本吻合,用永磁体等效模型及磁场数值积分方法计算永磁体的磁感应强度不仅简单而且计算精度较高。To find the convenient and simple calculation method of magnetic field for cylinder permanentmagnet, based on permanent magnet equivalent electric current model and, regarded magnetization magnetiz-er effect as surface current on magnetizer, this paper presents the law of magnetic field spatial distribu-tion, derives the analytical formulae of magnetism induction density in space for cylinder permanent, andget the answer of the magnetism induction density for cylinder permanent, through the numerical integrationfunction of MATLAB. The result shows that calculated results are in agreement with those actually-mea-sured. It is convenient and simple and can derive precision calculation results by the magnetic field equiva-lent model of permanent magnet and numerical integration method.

关 键 词：永磁体 磁场 数值积分 磁感应强度 

分 类 号：TM273[一般工业技术—材料科学与工程]