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Linear and Nonlinear Analysis of Magnetic Bearing Bandwidth Due to Eddy Current LimitationsFinite element analysis was used to study the bandwidth of alloy hyperco50a and silicon iron laminated rotors and stators in magnetic bearings. A three dimensional model was made of a heteropolar bearing in which all the flux circulated in the plane of the rotor and stator laminate. A three dimensional model of a plate similar to the region of a pole near the gap was also studied with a very fine mesh. Nonlinear time transient solutions for the net flux carried by the plate were compared to steady state time harmonic solutions. Both linear and quasi-nonlinear steady state time harmonic solutions were calculated and compared. The finite element solutions for power loss and flux bandwidth were compared to those determined from classical analytical solutions to Maxwell's equations.
Document ID
20000089716
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Kenny, Andrew
(Texas A&M Univ. College Station, TX United States)
Palazzolo, Alan
(Texas A&M Univ. College Station, TX United States)
Date Acquired
August 19, 2013
Publication Date
July 1, 2000
Publication Information
Publication: Fifth International Symposium on Magnetic Suspension Technology
Subject Category
Mechanical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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