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Title: Prediction and analysis of magnetic forces in permanent magnet brushless dc motor with rotor eccentricity
Authors: Liu, Z.J.
Li, J.T.
Jabbar, M.A. 
Issue Date: 2006
Citation: Liu, Z.J., Li, J.T., Jabbar, M.A. (2006). Prediction and analysis of magnetic forces in permanent magnet brushless dc motor with rotor eccentricity. Journal of Applied Physics 99 (8) : -. ScholarBank@NUS Repository.
Abstract: In design of permanent magnet motors for high-precision applications, it is sometimes necessary, early in the design stage, to have a detailed analysis of the effect of rotor eccentricity that may result from manufacturing imperfectness or use of fluid dynamic or aerodynamic bearings. This paper presents an analytical model for electromagnetic torque and forces in permanent magnet motors with rotor eccentricity. The model gives an insight to the relationship between the effect of the eccentricity and the other motor design parameters on the electromagnetic forces. It is shown that the calculated magnetic forces obtained from this model agree well with those obtained from numerical simulations that are very computationally demanding. © 2006 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.2165595
Appears in Collections:Staff Publications

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