多极磁环二维场分布的有限元计算  

FEM Simulation for Multipolar Magnetic Circular

作　　者：黄平[1] 韩满贵[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,成都610054

出　　处：《电子科技大学学报》2010年第3期447-449,共3页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金(60701016)

摘　　要：为提高多极磁环的设计和制作效率,采用有限元法对多极磁环的二维磁场分布进行数值模拟。在假设磁性材料的导磁率为1.2,矫顽力为11000 Oe的前提下,对稀土材料制作的四极内封闭和外封闭磁体进行了计算机仿真计算,得到了四极内封闭和外封闭磁体的磁力线分布和磁场强度分布图。并与传统的采用公式计算多极磁环的磁场分布的方法进行了比较,得到了较为一致的图形结果。同时采用有限元法得到的场分布为多极磁环的研究提供了更为详细的数据和图形结果,并且考虑了各磁体之间的相互作用和影响,使其仿真结果更接近真实磁场分布。For improving the efficiency of the design and manufacture of multipolar magnetic circular,finite element method（FEM） has been used for the field distribution simulation of multipolar magnetic circular.Supposing magnetic material’s permeability is 1.2,coercive force is 11 000 Oe,the charts of magnetic-flux distribution and magnetic-field distribution were obtained by computer simulation for four-polars inner-closed circular and out-closed circular magnetisms made by rare-earth magnetic material and are compared with those by traditional formula simulation.FEM provids more detailed numerical and chart results for the research of multipolar magnetic circular and considering the affacfion and effect between the magnetisms.

关 键 词：计算机仿真 有限元方法 磁路 磁性器件 

分 类 号：TM144[电气工程—电工理论与新技术]