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Transient Thermal Analysis of an Eddy-Current Heated Conductor Applying FEM-DBCI

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4 Author(s)
Aiello, G. ; Dipt. di Ing. Elettr., Elettron. e Inf., Univ. di Catania, Catania, Italy ; Alfonzetti, S. ; Dilettoso, E. ; Salerno, N.

A method is proposed for the computation of the transient heating of a conductor in which eddy currents flow, induced by time-harmonic source currents. The electrical field is assumed as unknown on a mesh of edge elements and is computed by a time-harmonic analysis. The heating power density inside the conductor is computed and a transient thermal analysis is started on the same mesh of nodal elements. This analysis is continued until the temperature-dependent electrical conductivity changes enough to require another time-harmonic eddy-current analysis. The combined procedure is iterated.

Published in:

Magnetics, IEEE Transactions on  (Volume:49 ,  Issue: 5 )