eddy currents; finite element method (FEM); skin and proximity effects; subdomain method
Abstract :
[en] The modeling of eddy currents in conductors is split into a sequence of progressive finite element subproblems. The source fields generated by the inductors alone are calculated at first via either the Biot-Savart law or finite elements. The associated reaction fields for each added conductive region, and in return for the source regions themselves when massive, are then calculated with finite element models, possibly with initial perfect conductor and/or impedance boundary conditions to be further corrected. The resulting subproblem method allows efficient solving of parameterized analyses thanks to a proper mesh for each subproblem and the reuse of previous solutions to be locally corrected.
Research center :
Applied and Computational Electromagnetics
Disciplines :
Electrical & electronics engineering
Author, co-author :
Dular, Patrick ; Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Péron, Victor; Université de Pau, Pau, France > MAGIQUE3D
Krähenbühl, Laurent; Université de Lyon, École Centrale de Lyon > Ampère
Geuzaine, Christophe ; Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Language :
English
Title :
Progressive eddy current modeling via a finite element subproblem method
Publication date :
2014
Journal title :
International Journal of Applied Electromagnetics and Mechanics
ISSN :
1383-5416
eISSN :
1875-8800
Publisher :
IOS Press, Amsterdam, Netherlands
Special issue title :
Selected Papers from ISEF-2013
Volume :
46
Pages :
341–348
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
Badics, Z., Matsumoto, Y., Aoki, K., Nakayasu, F., Uesaka, M., Miya, K., An effective 3-D finite element scheme for computing electromagnetic field distorsions due to defects in eddy-current nondestructive evaluation (1997) IEEE Trans Magn, 33 (2), pp. 1012-1020
Dular, P., Sabariego, R.V., Gyselinck, J., Krähenbühl, L., Sub-domain finite element method for efficiently considering strong skin and proximity effects (2007) COMPEL, 26 (4), pp. 974-985
Dular, P., Sabariego, R.V., Geuzaine, C., Ferreira Da Luz, M.V., Kuo-Peng, P., Krähenbühl, L., Finite element magnetic models via a coupling of subproblems of lower dimensions (2010) IEEE Trans Magn, 46 (8), pp. 2827-2830
Zaidi, H., Santandrea, L., Krebs, G., Le Bihan, Y., Demaldent, E., Modeling of thin conductive and magnetic layers in eddy current testing by overlapping finite elements (2012) International Journal of Applied Electromagnetics and Mechanics, 39 (1-4), pp. 341-346
Geuzaine, C., Meys, B., Henrotte, F., Dular, P., Legros, W., A Galerkin projection method for mixed finite elements (1999) IEEE Trans Magn, 35 (3), pp. 1438-1441