A novel finite element method for moving conductor eddy current problems

Author

Liu, Zhenning ; Eastham, Anthony R. ; Dawson, Graham E.

Author_Institution

Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

2449

Lastpage

2451

Abstract

A finite element method, as an alternative to upwinding, is proposed based on the elimination of the factors which could cause numerical oscillation and instability by properly choosing a set of unconventional weighting functions. The proposed method is first developed and verified for a one-dimensional case and then extended to two-dimensional problems. The calculation results for a two-dimensional problem, along with the exact solutions and those obtained from Galerkin´s and optimal upwinding methods, show that the proposed method is superior to these other methods in terms of accuracy and freedom from oscillation

Keywords

eddy currents; finite element analysis; computer resource savings; eddy current problems; finite element method; moving conductor; numerical instability; one-dimensional case; two-dimensional problems; Computer aided software engineering; Conductors; Discrete wavelet transforms; Eddy currents; Finite element methods; Integral equations; Moment methods; Piecewise linear techniques; Shape; Smoothing methods;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.280987

Filename

280987