A boundary integral formulation on unstructured dual grids for eddy-current analysis in thin shields

被引：16

作者：

Alotto, Piergiorgio ^{[1
]}

Guarnieri, Massimo ^{[1
]}

Moro, Federico ^{[1
]}

机构：

[1] Univ Padua, Dipartimento Ingn Elettr, I-35131 Padua, Italy

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2007年 / 43卷 / 04期

关键词：

boundary integral method (BIM); cell method (CM); eddy currents; edge elements; shielding;

D O I：

10.1109/TMAG.2006.890948

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 3-D boundary integral method (3-D BIM) capable of analyzing eddy currents in thin shields is presented. This novel approach is formulated in terms of loop currents in order to implicitly fulfill the div-free condition for quasi-magnetostatic problems. Using nonorthogonal dual grids unknowns are defined on nodes, resulting in a very efficient formulation with limited memory requirements. The proposed method is tested on an axisymmetric model showing a good agreement with the analytical solution. 3-D BIM is then applied to analyze a real case of low-frequency magnetic shielding.

引用

页码：1173 / 1176

页数：4

共 10 条

[1]

[Anonymous], 2001, PROGR ELECTROMAGNETI

[2]

BOSAVIT A, 1998, COMPUTATIONAL ELECTR

[3] Magnetic field computation in a physically large domain with thin metallic shields [J].