采用有限元方法分析直流电磁铁吸合过程  

Analysis of Suction Process of DC Electromagnet Based on Finite Element Method

作　　者：郭健[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《电气电子教学学报》2011年第4期96-98,共3页Journal of Electrical and Electronic Education

摘　　要：本文建立了直流电磁铁电磁吸力计算的有限元模型,模型中考虑了漏磁通和铁磁材料的非线性。本文还计算了衔铁处于不同位置时的磁场分布及漏磁率,得到了铁心中、衔铁中的磁密以及衔铁受到的电磁吸力随气隙变化的规律。有限元方法的分析结果对学生掌握"电工学"课程中电磁铁的吸力计算及吸合过程中的电磁规律有一定的帮助。In this paper,the finite element model of calculating electromagnetic force for DC electromagnet is built.The model takes account of leakage magnetic and iron material nonlinearity.The magnetic field distrbution and leakage magnetic ratio are achieved.The effect of air gap size on magnetic flux density and electromagnetic force are studied.The analysis results of finite element method taught in teaching of electrotechnology course is helpful to students.

关 键 词：电磁铁 有限元 漏磁 

分 类 号：TM41[电气工程—电器]