AN EFFICIENT CALCULATION SCHEME FOR THE NUMERICAL-SIMULATION OF COUPLED MAGNETOMECHANICAL SYSTEMS

A recently developed modeling scheme for the numerical simulation of c oupled magnetomechanical systems immersed in an acoustic fluid is pres ented. The scheme allows the calculation of dynamic rigid motions as w ell as deformations of magnetic and anti-magnetic materials in a magne tic field. The equations governing the magnetic, mechanical and acoust ic field quantities are solved using a combined Finite-Element-Boundar y-Element-Method (FEM-BEM), resulting in a seperation of the stationar y and the moving parts of the structure. Therewith, the well known pro blem of mesh distortion in finite element techniques due to moving par ts can be avoided, A computer simulation of a magnetomechanical transd ucer immersed in an acoustic fluid (acoustic power source) is presente d demonstrating the efficiency of the developed algorithm.