Adaptive mesh refinement for magnetic field problems involving saturable ferromagnetic parts

Author

Luomi, J. ; Rouhiainen, H.

Author_Institution

Lab. of Electromech., Helsinki Univ. of Technol., Espoo, Finland

Volume

24

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

311

Lastpage

314

Abstract

Adaptive mesh refinement for finite-element solution of two-dimensional magnetic fields is treated. Attention is given to problems with saturable ferromagnetic regions, high and abrupt variations of the magnetic permeability, and current density distributions. A combination of Delaunay triangulation and optimization of nodal coordinates is used for adaptive refinement. Error estimation is based on the difference between quadratic and linear interpolation polynomials. Examples of adaptive mesh generation and convergence of the method in problems of electrical machinery are presented

Keywords

ferromagnetism; interpolation; magnetic fields; magnetic permeability; Delaunay triangulation; adaptive mesh refinement; current density; electrical machinery; finite-element solution; linear interpolation polynomials; magnetic field problems; magnetic permeability; nodal coordinates; optimization; quadratic interpolation polynomials; saturable ferromagnetic parts; Adaptive mesh refinement; Convergence; Current density; Error analysis; Finite element methods; Interpolation; Magnetic fields; Mesh generation; Permeability; Polynomials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.43919

Filename

43919