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Research – Development – Innovation

Séminaire Equipe OMN, 26 Avril 2018

Le Jeudi 26 Avril 2018, Brijesh Upadhaya, doctorant à l’université d’Aalto (finlande), effectuera un séminaire sur le thème :

Modeling of the magnetic anisotropy in a soft magnetic material
suivi d’une discussion scientifique.

Date : Jeudi 26 Avril 2018 à 13h30
Lieu : Salle 2S53 à Lilliad

A non-oriented (NO) electrical steel sheet present a certain level of magnetic anisotropy. Unlike a grain oriented (GO) electrical steel, the degree of magnetic anisotropy found in the NO electrical steels vary considerably, between low-to-medium levels. A large percentage of the electrical applications utilize the NO electrical steel sheet, such as the rotating electrical machines. Thus, for an efficent design of the electrical applications, an accurate magnetic material model have become increasingly important. For this reason, the magnetic material model capable of describing a weakly anisotropic NO electrical steel sample has been studied in this work. This studied model is an extension of the phenomenological Jiles-Atherton hysteresis model. Furthermore, the extended model of the magnetic anisotropy is analysized, and the simulation results from this model has been compared with the measured magnetic charecteristic. Moreover, the numerical challanges has been studied, regarding the implementation of the vector Jiles-Atherton hysteresis model in a 2D finite element analysis.