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Electromagnetic Modeling of Ferrites Using Shell Elements and Random Grain Structures

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Electromagnetic Modeling of Ferrites Using Shell Elements and Random Grain Structures. / Rasilo, Paavo; Vesa, Joonas; Gyselinck, Johan.

julkaisussa: IEEE Transactions on Magnetics, Vuosikerta 56, Nro 2, 7507204 , 2020.

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Rasilo, Paavo ; Vesa, Joonas ; Gyselinck, Johan. / Electromagnetic Modeling of Ferrites Using Shell Elements and Random Grain Structures. Julkaisussa: IEEE Transactions on Magnetics. 2020 ; Vuosikerta 56, Nro 2.

Bibtex - Lataa

@article{45640392fea24d6a87e6f5491ceeac1b,
title = "Electromagnetic Modeling of Ferrites Using Shell Elements and Random Grain Structures",
abstract = "We present a novel approach for stochastic finite element (FE) modeling of electromagnetic fields in ferrites, combining a thin shell model (TSM) for highly permittive grain boundaries with a Voronoi-tessellation-based geometry generation algorithm. The TSM is validated in the case of a periodic grain structure in a linear 2-D time-harmonic case over a frequency range of 10 kHz – 1 GHz, and problems related to standard FE discretization are discussed. The TSM is then applied in a stochastic study for simulating the effect of varying grain structure on the effective resistivity, losses and reactive power densities of a ferrite core.",
author = "Paavo Rasilo and Joonas Vesa and Johan Gyselinck",
year = "2020",
doi = "10.1109/TMAG.2019.2951025",
language = "English",
volume = "56",
journal = "IEEE Transactions on Magnetics",
issn = "0018-9464",
publisher = "Institute of Electrical and Electronics Engineers",
number = "2",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Electromagnetic Modeling of Ferrites Using Shell Elements and Random Grain Structures

AU - Rasilo, Paavo

AU - Vesa, Joonas

AU - Gyselinck, Johan

PY - 2020

Y1 - 2020

N2 - We present a novel approach for stochastic finite element (FE) modeling of electromagnetic fields in ferrites, combining a thin shell model (TSM) for highly permittive grain boundaries with a Voronoi-tessellation-based geometry generation algorithm. The TSM is validated in the case of a periodic grain structure in a linear 2-D time-harmonic case over a frequency range of 10 kHz – 1 GHz, and problems related to standard FE discretization are discussed. The TSM is then applied in a stochastic study for simulating the effect of varying grain structure on the effective resistivity, losses and reactive power densities of a ferrite core.

AB - We present a novel approach for stochastic finite element (FE) modeling of electromagnetic fields in ferrites, combining a thin shell model (TSM) for highly permittive grain boundaries with a Voronoi-tessellation-based geometry generation algorithm. The TSM is validated in the case of a periodic grain structure in a linear 2-D time-harmonic case over a frequency range of 10 kHz – 1 GHz, and problems related to standard FE discretization are discussed. The TSM is then applied in a stochastic study for simulating the effect of varying grain structure on the effective resistivity, losses and reactive power densities of a ferrite core.

U2 - 10.1109/TMAG.2019.2951025

DO - 10.1109/TMAG.2019.2951025

M3 - Article

VL - 56

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

SN - 0018-9464

IS - 2

M1 - 7507204

ER -