Fast Preisach based magnetostriction model for highly magnetostrictive materials

Author

Reimers, Ann ; Torre, Edward Della

Author_Institution

Inst. of Magnetics Res., George Washington Univ., Washington, DC, USA

Volume

35

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

1239

Lastpage

1242

Abstract

A Preisach based magnetization model is presented to work specifically on highly magnetostrictive materials. The model accounts for the additional anisotropy introduced when a prestress is used to activate the high strain, by using a bimodal structure. The necessity of strain feedback to deal with the magneto-mechanical effect is discussed for Terfenol-D specifically. The model is based on a fast implementation of the DOK magnetization model, so it is suitable for real time control applications

Keywords

dysprosium alloys; iron alloys; magnetic anisotropy; magnetisation; magnetostriction; terbium alloys; DOK magnetization model; Preisach based magnetostriction model; TbDyFe; Terfenol-D; anisotropy; bimodal structure; high strain activation; highly magnetostrictive materials; magneto-mechanical effect; prestress; real time control; strain feedback; Anisotropic magnetoresistance; Magnetic anisotropy; Magnetic field induced strain; Magnetic hysteresis; Magnetic materials; Magnetic moments; Magnetostriction; Perpendicular magnetic anisotropy; Predictive models; Saturation magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.767174

Filename

767174