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Using the FEM Meshes Adaption and Genetic Algorithms for Identification of Permeability in Normal Direction of Anisotropic Sheets

Identifieur interne : 000265 ( France/Analysis ); précédent : 000264; suivant : 000266

Using the FEM Meshes Adaption and Genetic Algorithms for Identification of Permeability in Normal Direction of Anisotropic Sheets

Auteurs : K. Komeza [Pologne] ; E. Napieralska Juszczak [France] ; P. Di Barba [Italie] ; P. Napieralski [Pologne] ; J. P. Lecointe [France] ; N. Hihat [France]

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RBID : Pascal:12-0241089

Mots-clés :

Abstract

This paper proposes the identification of the B-H curve of anisotropic magnetic laminations in the direction normal to the sheet surface. An automated procedure for linking an identification algorithm implemented in a Matlab environment with a commercial finite-element code Opera for 3-D magnetic field analysis has been used. In particular, an optimization procedure is proposed, where the computation time is reduced by adjusting the refinement of the FEM mesh. The use of a multiprocessor computer allowed to perform parallel computations and to realize the calculation in a reasonable time. The finite element mesh density is changed during operation of the procedure depending on the level of magnetic flux density difference between calculation and measurements.


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