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Modeling of Eddy Current Loss for Magnetic Thrust Bearings

[+] Author Affiliations
Yongsheng Tian, Yanhua Sun, Lie Yu

Xi’an Jiaotong University, Xi’an, China

Paper No. IJTC2011-61050, pp. 191-193; 3 pages
doi:10.1115/IJTC2011-61050
From:
  • ASME/STLE 2011 International Joint Tribology Conference
  • ASME/STLE 2011 Joint Tribology Conference
  • Los Angeles, California, USA, Oct 24–26, 2011
  • ISBN: 978-0-7918-5474-7
  • Copyright © 2011 by ASME

abstract

In this paper, an analytical model for calculating eddy current loss in magnetic thrust bearings (MTBs) is presented. The surface magnetic field intensity, considering the skin effect of eddy current, is varying with the frequency and can be calculated by effective reluctance method. The magnetic field distribution and eddy current loss can be obtained from it. Finally, the validity of the model is verified by the finite element method (FEM) simulation and experimental results.

Copyright © 2011 by ASME

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