摘要
由静磁场的基本方程和有限元的原理出发,研究了一种新的计算带非饱和磁介质轴对称磁场的边界元-有限元混合法,编制了计算电磁聚焦成象系统聚焦磁场的程序。这种方法解决了单纯使用有限元法的边界封闭问题,为成象系统及其它磁透镜的工程设计提供了一种有效方法。
Based on the fundamental equations of staticmagnetic field and the principle of finite element method, a new combined boundary element-finite element method for the computation of rotational symmetrical magnetic field with unsaturated iron medium is studied and a program for the design of electromagnetic focusing imaging systems drawn up. The methdd shows that the question of closed boundary, when using finite element method only can now be settled. It also shown . that the new method is very efficient for the engineering design of imaging systems, as well as for ordinary magnetic lenses.
出处
《北京理工大学学报》
EI
CAS
CSCD
1991年第4期37-44,共8页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金
