Coupled electromagnetic, structural-dynamic, and acoustic simulation of an induction furnace

Induction furnaces for melting metals are well understood and optimized electromagnetically. New challenges arise, however, when regarding the whole device. Especially the vibrations and the acoustic noise are of importance, as the frequency of operation and the rated power of the devices are rising quickly. Since the vibrations are a result of the electromagnetic forces, a coupled simulation is required that regards all relevant effects. In this paper, the methods for the electromagnetic, structural-dynamic and acoustic simulations are presented as well as the coupling procedures. In the structural-dynamic part, a fluid-structure-interaction is used to regard the effect of the liquid melt