Eddy currents in bodies with sharp edges by the MMP-method

Author

Kiener, S.

Author_Institution

Inst. fuer Feldtheorie und HFT, Swiss Fed. Inst. of Technol., Zurich, Switzerland

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

482

Lastpage

485

Abstract

The power of the multiple multipole (MMP) methods, or the generalized multipole (GMP) technique, is demonstrated. Using this approach, the behavior of the electric field as well as the magnetic field (and thus eddy current) in the direct neighborhood of a geometric singularity is shown. For this purpose, two cylinders, one with a conical top and the other with a spherical top, have been investigated. The results of the computations are compared to observe with more accuracy the effect of the sharp edge. For both bodies, the material is lossy (semiconductor). The results showed that the programs give good results even for bodies with edges, without the need to implement special features

Keywords

eddy currents; electrical engineering computing; electromagnetic field theory; finite element analysis; GMP; MMP; Sun workstations; eddy current; electric field; finite element method; generalised multipole technique; geometric singularity; magnetic field; multiple multipole methods; processor MC68020; semiconductor; sharp edge; Conducting materials; Eddy currents; Electromagnetic fields; Electromagnetic scattering; Europe; Finite element methods; Message-oriented middleware; Moment methods; Partial differential equations; Piecewise linear techniques;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106358

Filename

106358