DocumentCode
82882
Title
Torque Area Method and Its Application in Analysis of HDD Spindle Motors With Sinusoidal Magnetization
Author
Feng, Ming ; Niu, K.
Author_Institution
Department of Mechatronic Engineering,, School of Mechanical Engineering, University of Science and Technology Beijing,, Beijing, China
Volume
49
Issue
6
fYear
2013
fDate
Jun-13
Firstpage
2794
Lastpage
2797
Abstract
Based on the Stieltjes integral, this paper investigates the characteristics of the torque area of surface permanent magnet motors with sinusoidal magnetization used in hard disk drives. Then, a simple torque calculation algorithm is proposed and verified through comparison with the finite element analysis. Meanwhile, an improved motor having the sintered NdFeB with sinusoidal magnetization and smaller airgap length is recommended.
Keywords
Hard disk drive (HDD) spindle motors; Stieltjes integral; oblique ellipse; sinusoidal magnetization; torque area;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2013.2247986
Filename
6522231
Link To Document