NDLI: Analysis of Permanent Magnet Demagnetization Accounting for Minor <formula formulatype=inline><tex Notation=TeX>$Bhbox{

Content Provider	IEEE Xplore Digital Library
Author	Zhilichev, Y.
Copyright Year	1965
Description	The paper presents a method accounting for a partial demagnetization of isotropic permanent magnets at elevated temperatures and maximum loads in the application. The method incorporates two coupled finite-element models for the magnetization and application. The magnetization model is employed to analyze the true distribution and orientation of the magnetization vector in the magnet. Then the application model with the imported magnetization provides the demagnetizing field along the magnetization vector at the given temperature and current. The recoil line model is used to recalculate the magnetization vector for the operating points fallen below the knee of demagnetization of the major or minor B-H curve. The corrected magnetization table is imported back into the application model to assess the flux reduction. The method is applied to analyze the demagnetization in the magnetically biased transformer, brush, and brushless motors.
Sponsorship	IEEE Magnetics Society
Starting Page	4285
Ending Page	4288
Page Count	4
File Size	402820
File Format	PDF
ISSN	00189464
Volume Number	44
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image analysis Magnetic analysis Permanent magnets Demagnetization Magnetization Temperature Magnetic flux Couplings Finite element methods Knee permanent magnets Finite-element method partial demagnetization permanent magnet motors
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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