NDLI: Simple force expressions for idealized saturable poles and wedges

Content Provider	IEEE Xplore Digital Library
Author	O'Connor, W.J.
Copyright Year	1965
Abstract	Force expressions are presented for simple idealized magnetic pole geometries with (a) infinitely permeable pole material, (b) "square B/H" saturable pole material, and (c) "square M/H" saturable material, the third being the most realistic. The simplicity of the force expressions with saturation is surprising, and important conclusions can be drawn about the role of saturation, the effects of different iron saturation models, and details of the field. For example, for the fundamentally important saturable overlapping rectangular pole configuration, with saturable poles modeled as highly nonlinear, "square M/H" iron, the useful transverse force for positive overlaps is F=/spl mu//sub 0/M/sub s/F, twice a comparable value for infinitely permeable poles. This paper is an exploration of how far one can go, using a variety of analytical nonnumerical techniques, in determining fields and forces when saturation effects predominate. The results give useful insights not easily obtained from numerical solutions and provide exact results in certain cases.
Sponsorship	IEEE Magnetics Society
Starting Page	2326
Ending Page	2332
Page Count	7
File Size	299896
File Format	PDF
ISSN	00189464
Volume Number	33
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Iron Soft magnetic materials Magnetic materials Magnetostatics Saturation magnetization Magnetic flux Geometry Magnetic analysis Magnetic hysteresis Magnetic devices
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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