A perturbation method for computing field distortions due to conductive regions with h-conform magnetodynamic finite element formulations

[en] A method for solving eddy current problems in two separate steps is developed for global-local analyses with h-conform finite element formulations. An unperturbed problem is first solved in a global mesh excluding additional conductive regions. Its solution gives the sources for a sequence of other problems, perturbed by adding conductive regions. Each problem only requires a new adapted mesh of a local region. The way the local problems and their sources are defined leads to a significant speedup of parameterized analyses, e.g., in optimization and sensitivity analyses.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Dular, Patrick ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)

V Sabariego, Ruth ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)

Language :

English

Title :

A perturbation method for computing field distortions due to conductive regions with h-conform magnetodynamic finite element formulations

Publication date :

2007

Journal title :

IEEE Transactions on Magnetics

ISSN :

0018-9464

eISSN :

1941-0069

Publisher :

IEEE, Piscataway, United States - New Jersey

Special issue title :

Sp. Iss. SI

Volume :

Issue :

Pages :

1293-1296

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4137712

Available on ORBi :

since 16 June 2009

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Bibliography

Z. Badics et al., "An effective 3-D finite element scheme for computing electromagnetic field distorsions due to defects in eddy-current nondestructive evaluation," IEEE Trans. Magn., vol. 33, no. 2, pp. 1012-1020, Mar. 1997.
R. V. Sabariego and P. Dular, "A perturbation technique for the finite element modelling of nondestructive eddy current testing," in Proc. Int. Symp. Electromagn. Fields Mech., Electr. Electron. Eng. (ISEF), Sep. 15-17, 2005, CD-ROM, paper CE-2.5.
P. Dular and P. Kuo-Peng, "Dual finite element formulations for the three-dimensional modeling of both inductive and capacitive effects in massive inductors," IEEE Trans. Magn., vol. 42, no. 4, pp. 743-746, Apr. 2006.
P. Dular, P. Kuo-Peng, C. Geuzaine, N. Sadowski, and J. P. A. Bastos, "Dual magnetodynamic formulations and their source fields associated with massive and stranded inductors," IEEE Trans. Magn., vol. 36, no. 4. pp. 3078-3081, Jul. 2000.
C. Geuzaine, B. Meys, F. Henrotte, P. Dular, and W. Legros, "A Galerkin projection method for mixed finite elements," IEEE Trans. Magn., vol. 35, no. 3, pp. 1438-1441, May 1999.
J. F. Imhoff, G. Meunier, X. Brunotte, and J. C. Sabonnadière, "An original solution for unbounded electromagnetic 2D and 3D problems throughout the finite element method," IEEE Trans. Magn., vol. 26, no. 5. pp. 1629-1631, 1990.
F. Henrotte, B. Meys, H. Hedia, P. Dular, and W. Legros, "Finite element modelling with transformation techniques," IEEE Trans. Magn., vol. 35, no. 3, pp. 1434-1437, May 1999.

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