On a magnetodynamic model for the iron losses in non-oriented steel laminations

In this paper we deal with a numerical model for the evaluation of the magnetic iron losses in one steel lamination. The magnetodynamic model for the magnetic field strength H is coupled with the Preisach model. The resulting boundary value problem for H is solved numerically by a modified finite element - finite difference method. The model is validated by the comparison of numerical experiments and measurements. The dynamic behaviour of two materials is investigated.