DocumentCode
1512145
Title
Effects of unbalanced magnetic pull in spindle motors
Author
Bi, C. ; Liu, Z.J. ; Low, T.S.
Author_Institution
Data Storage Inst., Nat. Univ. of Singapore, Singapore
Volume
33
Issue
5
fYear
1997
fDate
9/1/1997 12:00:00 AM
Firstpage
4080
Lastpage
4082
Abstract
This paper analyzes the effects of the unbalanced-magnetic-pull developed in spindle motors for hard disk drives. An analytical technique is used in the investigation which is based on magnetic circuit and field theory. Computational results show that the UMP development is closely related to the magnetic structure, armature winding and armature current of the spindle motors
Keywords
brushless DC motors; electromagnetic forces; hard discs; machine theory; machine windings; magnetic circuits; permanent magnet motors; analytical technique; armature current; armature winding; brushless DC motor; computational results; hard disk drives; magnetic circuit theory; magnetic field theory; magnetic structure; permanent magnet spindle motors; rotor; surface mounted PM ring; unbalanced magnetic pull effects; Acoustic noise; Difference equations; Induction motors; Magnetic analysis; Magnetic fields; Magnetic flux; Performance analysis; Permanent magnet motors; Rotors; Stator windings;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.619669
Filename
619669
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