Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34399
Title: Analysis and solution on squeak noise of small permanent-magnet DC brush motors in variable speed applications
Authors: Li, YB
Ho, SL 
Fu, WN 
Xue, BF
Keywords: Finite-element analysis
Permanent magnet
PMDC motor
Squeak noise
Unbalanced magnetic radial force
Issue Date: 2009
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2009, v. 45, no. 10, 5257030, p. 4752-4755 How to cite?
Journal: IEEE transactions on magnetics 
Abstract: The phenomenon of squeaking noise, based on noise spectra data during the running up of a small permanent-magnet DC (PMDC) brush motor, is analyzed. From the analysis, it is found that apart from some mechanical issues, the major contributor of the squeaking noise of PMDC is the unbalanced magnetic radial force. In this study, the unbalanced magnetic radial force is simulated using finite- element analysis (FEA). A simple but effective method to reduce the noise is proposed. The improved method is validated by test results.
URI: http://hdl.handle.net/10397/34399
ISSN: 0018-9464
EISSN: 1941-0069
DOI: 10.1109/TMAG.2009.2024882
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