DocumentCode
1477542
Title
A high-bandwidth moving-magnet actuator for hard disk drives
Author
Chen, S.X. ; Li, Q. ; Mah, Y. ; Mannan, M. ; Ong, E. ; Zheng, H. ; Weerasooriya, S. ; Wood, R.
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
2632
Lastpage
2634
Abstract
This paper describes an experimental moving-magnet actuator (HBX) designed far a 3.5", 2-disk, hard drive. The specific design objective is to increase the small-signal bandwidth of the actuator without sacrificing good seek performance. The proposed actuator comprises a stiffened arm structure and an orthogonal drive, moving-magnet motor. The magnetics and mechanics of the motor are studied through finite element analysis (FEA). A prototype actuator is built and tested using static forces and modal analysis. These results agree with the FEA results and provide valuable insight into the design of moving magnet motors
Keywords
actuators; finite element analysis; hard discs; 3.5 in; HBX; finite element analysis; hard disk drive; moving-magnet actuator; small-signal bandwidth; Actuators; Arm; Bandwidth; Coils; Finite element methods; Frequency; Hard disks; Magnetic analysis; Magnetic field measurement; Magnetic resonance; Modal analysis; Prototypes; Testing;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.617431
Filename
617431
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