The ISP technique 3D electromagnetic and eddy current computations in general media

Author

Mohammed, Osama A. ; Uler, Fuat G. ; Zhang, Xiaobing

Author_Institution

Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

1668

Lastpage

1670

Abstract

A novel technique for 3-D eddy current computations is presented. It is based on an iterative scalar potential (ISP) method in general media. The resulting equations are solved using finite elements based on a Galerkin procedure. The partial differential equations governing the eddy current problem are solved in a related integral form utilizing Green´s theorem. A major advantage of the method is that the numerical problem is solved in terms of electromagnetic field variables which have a physical meaning. Another major advantage is that there is one degree of freedom per node, which results in a sizable saving in CPU time. Numerical results utilizing this technique were obtained in less than 1/2 of the CPU time consumed utilizing the A-Φ method for the same 3-D grid size

Keywords

eddy currents; electromagnetic induction; finite element analysis; iterative methods; partial differential equations; 3-D eddy current computations; A-Φ method; Galerkin procedure; Green´s theorem; electromagnetic field variables; finite elements; general media; iterative scalar potential; partial differential equations; Acceleration; Aluminum; Central Processing Unit; Eddy currents; Finite element methods; Integral equations; Iterative methods; Magnetostatics; Nonlinear magnetics; Partial differential equations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104485

Filename

104485