Fast Preisach-based vector magnetization model

Author

Reimers, Ann ; Della Torre, Edward

Author_Institution

Inst. for Magn. Res., George Washington Univ., Washington, DC, USA

Volume

37

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

3349

Lastpage

3352

Abstract

The Preisach based DOK (Della Torre-Oti-Kadar) model was reformulated to increase its speed of computation so that is could be integrated into a commercial finite element (FE) modeling package. This allowed the FE package to offer a more accurate representation of magnetic material behavior than had been previously available. The next logical step is to offer vector magnetization calculation. Vector models are more complicated, though, due to the cross-coupling effect applied field directions have on magnetization. The simplified vector Preisach model is reformulated here to speed its computations by extending the use of the “cobweb” grid in defining the Preisach function for this multi-dimensional model

Keywords

finite element analysis; magnetic hysteresis; magnetic susceptibility; Della Torre-Oti-Kadar model; Preisach-based vector magnetization model; cobweb grid; cross-coupling effect; finite element modeling package; magnetic hysteresis; magnetic material behavior; Anisotropic magnetoresistance; Couplings; Finite element methods; Grid computing; Magnetic analysis; Magnetic hysteresis; Magnetic materials; Magnetic susceptibility; Magnetization; Packaging;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.952611

Filename

952611