J. Nerg et J. Partanen, A simplified FEM based calculation model for 3-D induction heating problems using surface impedance formulations, IEEE MAGNET, 37(5), 2001, pp. 3719-3722
A simplified FEM based combined magneto-thermal calculation model for nonli
near 3-D induction heating problems is described. The model Is based on the
combination of linear and nonlinear surface impedances evaluated using tra
nsient magnetic field calculation. The power dissipated in surface impedanc
es is calculated and transferred to the thermal model as heat fluxes. After
the temperature distribution is calculated the surface impedances are upda
ted to correspond to the present electromagnetic and thermal states of the
work piece. The performance of the model was verified with comparison to th
e measurements.