三维稳态涡流场有限元分析的后验误差估计  

A Posteriori Error Estimation of Finite Element Analysis for Three Dimensional Steady State Eddy Current Fields

作　　者：李锦彪[1,2] 谢德馨[1] 

机构地区：[1]沈阳工业大学电气工程学院,沈阳110178 [2]正泰电气股份有限公司,上海201614

出　　处：《电工技术学报》2010年第4期10-14,共5页Transactions of China Electrotechnical Society

摘　　要：介绍了几种有限元后验误差分析方法,特别对显式余量法、平均法及能量法在采用A-?位对节点元涡流场分析中的应用作了比较和分析,并给出了应用这三种方法进行自适应有限元分析时的后验误差计算公式。实际算例表明,余量法及平均法可以用于稳态涡流场有限元分析的后验误差估计,在以涡流损耗作为计算重点时,能量法应该慎用。Several methods of a posteriori error estimation for finite element analysis are described, in which the explicit residual method, average method, and energy method are compared and analyzed in the computation of A- ？ node-finite element analysis for eddy current fields. The expressions of a posteriori error estimation are proposed for the three methods used in adaptive finite element analysis. The numerical results of computational examples show that the residual method and average method can be applied to the a posteriori error estimation of eddy current loss calculation. If the emphasis is on the eddy current losses, the energy method does not be recommended.

关 键 词：后验误差估计 三维涡流场 有限元分析 

分 类 号：TM154.21[电气工程—电工理论与新技术]