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Modeling Overlapping Laminations in Magnetic Core Materials Using 2-D Finite-Element Analysis

Lookup NU author(s): Bogi Jensen, Professor Barrie Mecrow

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Abstract

This paper describes a technique for modeling overlapping laminations in magnetic core materials using two-dimensional finite-element (2-D FE) analysis. The magnetizing characteristic of the overlapping region is captured using a simple 2-D FE model of the periodic overlapping geometry and a composite material is created, which has the same magnetization characteristic. The benefit of this technique is that it allows a designer to perform design and optimization of magnetic cores with overlapped laminations using a 2-D FE model rather than a 3-D FE model, which saves modeling and simulation time. The modeling technique is verified experimentally by creating a composite material of a lap joint with a 3-mm overlapping region and using it in a 2-D FE model of a ring sample made up of a stack of 20 laminations. The B-H curve of the simulated ring sample is compared with the B-H curve obtained experimentally and shown to be a close match.


Publication metadata

Author(s): Jensen BB, Guest ED, Mecrow BC

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Magnetics

Year: 2015

Volume: 51

Issue: 6

Print publication date: 01/06/2015

Online publication date: 04/11/2014

Acceptance date: 24/10/2014

ISSN (print): 0018-9464

ISSN (electronic): 1941-0069

Publisher: IEEE

URL: http://dx.doi.org/10.1109/TMAG.2014.2367475

DOI: 10.1109/TMAG.2014.2367475


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