A novel finite analytic element method for solving eddy current problems with moving conductors

Author

Dezhi Chen ; Shao, K.R. ; Lavers, J.D.

Author_Institution

Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Wuhan

Volume

37

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

3150

Lastpage

3154

Abstract

A novel finite analytic element method (FAEM) is presented. The basic idea of the method is the incorporation of local analytic solution of the governing equation in the finite element method, A local analytical solution satisfying its nodal conditions is found in each element and is used for determining the shape functions. Then, a weighted residuals scheme is followed to yield the linear algebraic equations. The presented FAEM is applied to solve 1-D and 2-D eddy current problems with moving conductors. Because the problem´s analytical features have been considered, the solution in each element is approximated closely and the spurious oscillations which occur in the ordinary Galerkin solutions are avoided. High accuracy is obtained with no need of very fine meshes

Keywords

conductors (electric); eddy currents; finite element analysis; eddy current problems; finite analytic element method; governing equation; linear algebraic equations; local analytical solution; moving conductors; nodal conditions; shape functions; spurious oscillations; weighted residuals scheme; Conductors; Eddy currents; Electric potential; Equations; Finite element methods; Magnetic analysis; Magnetic fields; Moment methods; Permeability; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.952564

Filename

952564