Simulation of Induction Heating of Steel Billet Considering its Movement using 3-D FEM (in Japanese)

For induction heating simulation, 3-D finite element analysis of magneto-thermal coupled problem with moving billet are presented. For better accuracy and due to the different characters of the approximated unknown variables, two appropriate solution spaces are considered: a vectorial characteristics of the magnetic field and eddy-current distributions; and a scalar space using nodal finite elements for the non-linear analysis of thermal field distribution. A moving billet with eddy-current flow is considered using appropriate step division for the nature of the coupled process. The mathematical background, analyzed models and obtained results are presented.