Title :
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
fDate :
5/1/1999 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
