Title :
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
fDate :
3/1/1992 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
