Mixed-Order Finite-Element Modeling of Magnetic Material Degradation Due to Cutting

Thumbnail Image

Access rights

openAccess
acceptedVersion

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)

Authors

Date

2018

Department

Department of Electrical Engineering and Automation
Department of Mathematics and Systems Analysis

Major/Subject

Mcode

Degree programme

Language

en

Pages

8

Series

IEEE Transactions on Magnetics, Volume 54, issue 6

Abstract

As a part of manufacturing of electrical machines, electrical sheets are cut to the desired shape by various cutting techniques, such as punching and laser cutting. This cutting process degrades the magnetic material near the cut edge, which should be included in the finite-element modeling of electrical machines. However, due to the nature of the cutting effects, the existing finite-element modeling of the cutting effect results in computationally heavy simulations. This paper investigates the application of mixed-order elements to model the cutting effect. The second-order nodal triangular elements are used near the cut edge, whereas transition/first-order elements are applied in the remaining solution domain. Furthermore, the accuracy of the presented method is analyzed with the traditional method. According to the simulations, the mixed-order elements returned accurate results significantly faster than the traditional finite-element-based approaches. Furthermore, the effect of the cutting on the machine performance is also studied by comparing its results briefly.

Description

| openaire: EC/FP7/339380/EU//ALEM

Keywords

Computational modeling, Core loss, cut edge, cutting, Degradation, electrical machines, finite-element modeling, Magnetic cores, Magnetic materials, Mathematical model, mixed-order elements, punching, Saturation magnetization, Shape, steel laminations

Other note

DOI

10.1109/TMAG.2018.2811385

Citation

Sundaria, R, Lehikoinen, A, Hannukainen, A, Arkkio, A & Belahcen, A 2018, 'Mixed-Order Finite-Element Modeling of Magnetic Material Degradation Due to Cutting', IEEE Transactions on Magnetics, vol. 54, no. 6, 7402008 . https://doi.org/10.1109/TMAG.2018.2811385

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-201808014057

Collections

[article-cris] Perustieteiden korkeakoulu / SCI