Analytic and Experimental Analysis of Magnetic Force Equations

Analytic and Experimental Analysis of Magnetic Force Equations

Author Gama, Sergio Autor UNIFESP Google Scholar
Ferreira, Lucas D. R. Google Scholar
Bessa, Carlos V. X. Google Scholar
Horikawa, Oswaldo Google Scholar
Coelho, Adelino A. Google Scholar
Gandra, Flavio C. Google Scholar
Araujo, Raul Google Scholar
Egolf, Peter W. Google Scholar
Abstract The design of magnetic devices requires a precise estimation of magnetic forces. In previous works, we presented a general approach to estimate these forces based upon thermodynamically closed systems, resulting in four different forms of the force equations. This paper presents a complete theoretical model analysis tested by experiments, using arrangements of permanent magnets and a device for measuring the force induced on a soft magnetic material according to its position with respect to the permanent magnets. The results of analytical formulation, Finite Element Method numerical analysis, and experiments are compared with each other. This enabled the identification of two forms of the force equations that most precisely describe the magnetic forces. A follow-up experiment is then proposed and executed, identifying the correct form of the magnetic force equations. The resulting equation can be used to analytically estimate the magnetic force in many practical problems.
Keywords Experimental validation
magnetic analysis
magnetic forces
permanent magnets
xmlui.dri2xhtml.METS-1.0.item-coverage Piscataway
Language English
Date 2016
Published in Ieee Transactions On Magnetics. Piscataway, v. 52, n. 7, p. -, 2016.
ISSN 0018-9464 (Sherpa/Romeo, impact factor)
Publisher Ieee-Inst Electrical Electronics Engineers Inc
Extent -
Origin http://dx.doi.org/10.1109/TMAG.2016.2517127
Access rights Closed access
Type Article
Web of Science ID WOS:000379924800231
URI https://repositorio.unifesp.br/handle/11600/57669

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