Software Environment for the Computer Modeling of Magnetomechanical Systems

Abstract

This paper presents a new numerical technique for the computer simulation of magnetomechanical systems taking fully into account the reaction of movement of structural parts on the electromagnetic field. The wellknown problem of mesh distortion due to moving parts which occurs in finite element techniques has been overcome by utilizing a coupled Finite-Element-Boundary-Element formulation, which is introduced here. The use of an explicit time step algorithm allows the direct coupling of magnetical and mechanical quantities in one model. To efficiently handle this complex calculation scheme, a special preprocessing software has been developed. Therewith, the specifications of different materials, magnetical and mechanical boundary conditions, electrical current and voltage sources as well as mechanical loads are already performed at the geometry level and not on the basis of the finite element mesh, as it is usual.