Work

Model of Magnetic Anisotropy of Non-Oriented Steel Sheets for Finite-Element Method

Year: 2015

Type: article

Abstract: Even non-oriented steel sheets present a magnetic anisotropic behavior. From rotational flux density measurements at 5 Hz, the model of magnetic anisotropy is derived from two surface basis-cubic splines with the boundary conditions matching with ferromagnetic theory. Furthermore, the investigation of the magnetic anisotropy shows that the H(B) characteristic is not strictly monotonous due to the angle difference between the field and the flux density. Hence, the standard non-linear solvers would either diverge or converge toward the closest local minimum. Thus, we propose two different specific solvers: 1) a combined particle swarm optimization with a relaxed Newton-Raphson and 2) a modified Newton method.

Source: IEEE Transactions on Magnetics

DOI: 10.1109/tmag.2015.2488100

Authors: Floran Martin, Deepak Singh, Paavo Rasilo, Anouar Belahcen, Antero Arkkio

Institutions: Aalto University, Tampere University of Technology

Language: English

Topic: Magnetic Properties and Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Academy of Finland, European Research Council, Luonnontieteiden ja Tekniikan Tutkimuksen Toimikunta

Award: G1668766786