DocumentCode
1387707
Title
Design trends of spindle motors for high performance hard disk drives
Author
Chen, S.X. ; Low, T.S. ; Lin, H. ; Liu, Z.J.
Author_Institution
Data Storage Inst., Nat. Univ. of Singapore, Singapore
Volume
32
Issue
5
fYear
1996
fDate
9/1/1996 12:00:00 AM
Firstpage
3848
Lastpage
3850
Abstract
Reducing the unbalanced radial force and reduction of cogging torque are important for the future high performance spindle motors. In this paper, the effects of the pole and slot number combinations on the cogging torque and unbalanced radial force are discussed and a detail investigation on the unbalanced radial force is made using FEM. It is shown that the unbalanced radial force is substantial in the starting condition and in the delta connection winding. The unbalanced radial force can be largely reduced by optimization of the pole arc to pitch ratio
Keywords
finite element analysis; hard discs; permanent magnet motors; FEM; cogging torque; delta connection; design; hard disk drive; pole number; slot number; spindle motor; starting condition; unbalanced radial force; Forging; Hard disks; Neodymium; Permanent magnet motors; Poles and zeros; Rotors; Spinning; Stability; Stators; Torque;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.539193
Filename
539193
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