Article: Analytical field calculation for linear tubular magnetic gears using equivalent anisotropic magnetic permeability

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Title	Analytical field calculation for linear tubular magnetic gears using equivalent anisotropic magnetic permeability
Authors	Li, W1 Chau, KT1
Issue Date	2012
Publisher	Electromagnetics Academy. The Journal's web site is located at http://www.jpier.org/PIER/
Citation	Progress In Electromagnetics Research, 2012, v. 127, p. 155-171 [How to Cite?] DOI: http://dx.doi.org/10.2528/PIER12030301
Abstract	Linear magnetic gears take the definite merit of direct force amplification or speed reduction without using any bulky, inefficient rotary-to-linear mechanism. In this paper, an analytical calculation approach to determine the performance of linear tubular magnetic gears is proposed. The key is to adopt the concept of anisotropic magnetic permeability to handle the field-modulation region which consists of iron rings and airspaces in a zebra-striped manner. By solving the Laplace's and Poisson's equations in the linear tubular magnetic gear, the corresponding magnetic field distributions can be analytically determined. Finally, the analytical calculation results are compared with the numerical results obtained from the finite element method, hence verifying the validity of the proposed analytical field calculation.
ISSN	1070-4698 2011 SCImago Journal Rankings: 1.213
DOI	http://dx.doi.org/10.2528/PIER12030301
References	References in Scopus

DC Field	Value
dc.contributor.author	Li, W
dc.contributor.author	Chau, KT
dc.date.accessioned	2012-08-08T08:35:10Z
dc.date.available	2012-08-08T08:35:10Z
dc.date.issued	2012
dc.description.abstract	Linear magnetic gears take the definite merit of direct force amplification or speed reduction without using any bulky, inefficient rotary-to-linear mechanism. In this paper, an analytical calculation approach to determine the performance of linear tubular magnetic gears is proposed. The key is to adopt the concept of anisotropic magnetic permeability to handle the field-modulation region which consists of iron rings and airspaces in a zebra-striped manner. By solving the Laplace's and Poisson's equations in the linear tubular magnetic gear, the corresponding magnetic field distributions can be analytically determined. Finally, the analytical calculation results are compared with the numerical results obtained from the finite element method, hence verifying the validity of the proposed analytical field calculation.
dc.description.nature	Link_to_OA_fulltext
dc.identifier.citation	Progress In Electromagnetics Research, 2012, v. 127, p. 155-171 [How to Cite?] DOI: http://dx.doi.org/10.2528/PIER12030301
dc.identifier.doi	http://dx.doi.org/10.2528/PIER12030301
dc.identifier.epage	171
dc.identifier.hkuros	208223
dc.identifier.issn	1070-4698 2011 SCImago Journal Rankings: 1.213
dc.identifier.scopus	eid_2-s2.0-84860201906
dc.identifier.spage	155
dc.identifier.uri	http://hdl.handle.net/10722/155751
dc.identifier.volume	127
dc.language	eng
dc.publisher	Electromagnetics Academy. The Journal's web site is located at http://www.jpier.org/PIER/
dc.publisher.place	United States
dc.relation.ispartof	Progress in Electromagnetics Research
dc.relation.references	References in Scopus
dc.title	Analytical field calculation for linear tubular magnetic gears using equivalent anisotropic magnetic permeability
dc.type	Article

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Author Affiliations

The University of Hong Kong