Some aspects of magnetic force computation using BEM-FEM coupling

被引：0
|
作者：
Fetzer, Joachim [1 ]
Kurz, Stefan [1 ]
Lehner, Guenther [1 ]
Rucker, Wolfgang M. [1 ]
机构：
[1] Universitaet Stuttgart, Stuttgart, Germany
来源：
Applied Computational Electromagnetics Society Journal | 1997年 / 12卷 / 02期
关键词：
Boundary element method - Computational methods - Finite element method - Mathematical models - Maxwell equations - Tensors - Vectors;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
For the calculation of magnetic forces with the Maxwell stress tensor the normal and the tangential derivatives of the vector potential A have to be known. We choose CO-continuous elements, therefore A and its tangential derivatives are continuous. In contrast, the normal derivative &partA/&partn calculated with the finite element method is continuous only in a weak sense. When BEM-FEM coupling is used however, the value of &partA/&partn is uniquely available on the coupling surfaces from the BEM formulation. Two methods of magnetic force computation using &partA/&partn either from FEM or from BEM data will be presented. Their accuracy will be compared by means of several examples.
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页码：117 / 120
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