Analysis of eddy currents with Landau-Lifshitz equation as a constitutive relation

Author

Serpico, Claudio ; Mayergoyz, I.D. ; Bertotti, Giorgio

Author_Institution

Dipartimento di Ingegneria Elettrica, Naples Univ., Italy

Volume

37

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

3546

Lastpage

3549

Abstract

Analysis of eddy currents in magnetically nonlinear media is presented for the case when dynamical magnetic material properties are described by the Landau-Lifshitz equation. A novel finite difference scheme that preserves (conserves) the magnitude of magnetization vector is developed. This scheme is linear and has a second-order truncation error. The scheme is applied to the analysis of eddy currents and numerical testing of its accuracy is reported for the case of circularly polarized driving magnetic fields

Keywords

eddy currents; finite difference methods; magnetisation; nonlinear media; Landau-Lifshitz equation; circularly polarized driving magnetic fields; constitutive relation; dynamical magnetic material properties; eddy currents; finite difference scheme; magnetically nonlinear media; magnetization vector; numerical testing; second-order truncation error; Eddy current testing; Eddy currents; Finite difference methods; Finite wordlength effects; Magnetic analysis; Magnetic materials; Magnetic properties; Magnetization; Nonlinear equations; Vectors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.952658

Filename

952658