A semi-analytical coupled simulation approach for induction heating

Abstract The numerical simulation of the induction heating process can be computationally expensive, especially if ferromagnetic materials are studied. There several analytical models that describe electromagnetic phenomena. However, these very limited by geometry coil and workpiece. Thus, usual method for computing more complex systems is to use finite element solve set equations in multiphysical system, but this easily becomes time consuming. This paper deals with problem solving a coupled - thermal higher computational efficiency. For purpose, semi-analytical modeling strategy proposed, based on an initial computation, followed electromagnetic-thermal problem. usage simplified model restricted simple geometrical features such as flat or curved surfaces great curvature skin depth ratio. Numerical experimental validation show average error between 0.9% 4.1% prediction temperature evolution, reaching greater accuracy than other analyzed commercial softwares. A 3D case double-row large size ball bearing also presented, fully validating proposed approach terms industrial cases.