Finite element solution based on fast numerical technique for large-scale electromagnetic computation  

一种基于快速数值技术的电磁场分析有限元算法(英文)

作　　者：赵阳[1] 储家美[2] Satish Udpa 

机构地区：[1]南京师范大学电气与自动化学院,南京210042 [2]东南大学毫米波国家重点实验室,南京210096 [3]美国密西根州立大学电气工程系,美国东兰辛mi48823

出　　处：《Journal of Southeast University(English Edition)》2006年第4期470-474,共5页东南大学学报（英文版）

基　　金：Open Funds of State Key Laboratory of MillimeterWaves,China (No. K200401), Outstanding Teaching and ResearchAwards for Young Teachers of Nanjing Normal University (No.1320BL51)

摘　　要：A numerical technique of the target-region locating （TRL） solver in conjunction with the wave-front method is presented for the application of the finite element method （FEM） for 3-D electromagnetic computation. First, the principle of TRL technique is described. Then, the availability of TRL solver for nonlinear application is particularly discussed demonstrating that this solver can be easily used while still remaining great efficiency. The implementation on how to apply this technique in FEM based on magnetic vector potential （MVP） is also introduced. Finally, a numerical example of 3-D magnetostatic modeling using the TRL solver and FEMLAB is given. It shows that a huge computer resource can be saved by employing the new solver.提出了一种用于三维电磁场有限元分析的数值技术,即与波阵法配合使用的目标区域定位(TRL)算子.首先对波阵法进行了分析,然后对TRL算子原理进行了详细论述,并讨论了TRL算子在非线性场合应用的可行性,指出其仍能够适用并保持原来的高效率.还介绍了TRL算子在采用矢量磁位函数有限元公式中的实现.最后给出了一个三维静磁场建模的算例,分别采用TRL算子和有限元软件FEMLAB.结果表明:与FEMLAB相比,TRL算子可以节省可观的计算机资源.

关 键 词：finite element method electromagnetic computation numerical technique fast solver 

分 类 号：TM154[电气工程—电工理论与新技术]