Bere Ioan
Assoc. Prof., "Politehnica" University
Department of Electrotechnics
Timisoara, Romania
The paper treats the transformation of the concentrated form of the functional (associated to the finite elements method - FEM) attached to the resolution of the three dimensional (3D) field from the inhomogeneous, non-linear and anisotropic systems that have random main directions of magnetisation. We have got the useful form of the functional which is used in the numerical computation of the distribution of the field created by permanent magnets. Key words: permanent magnets, FEM, inhomogenity, nonlinearity, anisotropy