Couverture de The FEM calculation of magnetic field in nonlinear anisotropic media
Titre du livre:

The FEM calculation of magnetic field in nonlinear anisotropic media

LAP LAMBERT Academic Publishing (05-07-2013 )

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ISBN-13:

978-3-659-40030-8

ISBN-10:
3659400300
EAN:
9783659400308
Langue du livre:
Anglais
texte du rabat:
In the present work we study the modelling of quasi-stationary magnetic fields in nonlinear anisotropic media by FEM. The characteristics of soft ferromagnetic materials are thouroughly reviewed and eventually applied to the construction of a full 2D model of an anisotropic steel sheet. Some improvements in the construction in comparision to the ones previously published were achieved. We point out that the standard formulations and the subsequent theorems for the boundary value problems do not in fact correspond with the physical situation. Instead, we propose new formulations that reflect real physical properties of matter. General existence and uniqueness theorems for the obtained boundary value problems are proved as well as the convergence theorems for the discrete solutions. The conventional and full 2D model of an anisotropic steel sheet are compared in two transformer core models using the adaptive Newton-Raphson iterative scheme. The obtained results are then presented with comments. This work also points out the steps needed for the construction of a 3D model of steel-dielectric laminations that was not yet elaborated.
Maison d'édition:
LAP LAMBERT Academic Publishing
Site Web:
https://www.lap-publishing.com/
de (auteur) :
Zdeněk Kunický
Numéro de pages:
128
Publié le:
05-07-2013
Stock:
Disponible
Catégorie:
Électricité, Magnétisme, Optique
Prix:
61.90 €
Mots-clés:
FEM, Transformer, reluctivity, magnetic, Anisotropic

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