ISSN 1817-2172, рег. Эл. № ФС77-39410, ВАК

Differential Equations and Control Processes
(Differencialnie Uravnenia i Protsesy Upravlenia)

Inhomogeneous, Non-linear and Anisotropic Systems with Random Magnetisation Main Directions Part Two: Minimisation of Functional Issue and Fem Equations for 3d Field Produced by Permanent Magnets


Bere Ioan

Assoc. Prof., "Politehnica" University
Department of Electrotechnics
Timisoara, Romania


The paper presents the minimization of functional issue, associated to the finite elements method (FEM) and establish on detail the equations to solve the problem of the three-dimensional (3D) magnetic field, in inhomogeneous, nonlinear and anisotropic domains with random main directions of magnetization. Numerical computation of the algebraic equations system obtained, it could be established the state quantities of the magnetic field or other quantities which are interested in. Key words: permanent magnets, FEM, inhomogenity, nonlinearity, anisotropy

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