Approximation of nonlinear anisotropic magnetization characteristics

Author

Haas, H. ; Schmellebeck, F.

Author_Institution

Inst. for Fundamentals & Theory in Electr. Eng., Univ. of Technol., Vienna, Austria

Volume

28

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

1255

Lastpage

1258

Abstract

The characteristics of nonlinear and anisotropic materials are investigated, neglecting hysteretic effects. Starting from experimental results, appropriate general mathematical conditions are formulated for adequate permeability and reluctivity functions. For such functions it is shown that the solution of the boundary value problem characterizing the calculation of stationary magnetic fields is unique. Furthermore, formulas for magnetic energy density are given, and examples of admissible approximation functions are presented

Keywords

approximation theory; boundary-value problems; ferromagnetism; magnetisation; admissible approximation functions; boundary value problem; magnetic energy density; nonlinear anisotropic magnetization characteristics; permeability functions; reluctivity functions; stationary magnetic fields; Anisotropic magnetoresistance; Equations; Jacobian matrices; Magnetic anisotropy; Magnetic fields; Magnetic flux; Magnetic hysteresis; Magnetic materials; Magnetization; Perpendicular magnetic anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.123916

Filename

123916