DocumentCode
1467552
Title
An analysis of disk flutter in hard disk drives in aerodynamic simulations
Author
Tatewaki, Masayuki ; Tsuda, Naozumi ; Maruyama, Tsugito
Author_Institution
Autonomous Syst. Lab., Fujitsu Labs. Ltd., Kawasaki, Japan
Volume
37
Issue
2
fYear
2001
fDate
3/1/2001 12:00:00 AM
Firstpage
842
Lastpage
846
Abstract
In this paper, using aerodynamic numerical analysis, we investigate mechanisms causing disk flutter in hard disk drives. A computer simulation model of three stacked disks was calculated using the finite-difference method with the LES model of turbulence. As a result, secondary airflows were found to move upward and downward though a shroud gap around the outer edge of the disk. The inference from this discovery is that a phase difference of spatial pressure patterns between the top surface and bottom surface of a disk causes disk flutter
Keywords
aerodynamics; disc drives; finite difference methods; hard discs; LES model; aerodynamic simulations; bottom surface; disk flutter; finite-difference method; hard disk drives; secondary airflows; shroud gap; spatial pressure patterns; stacked disks; top surface; Aerodynamics; Analytical models; Computational modeling; Energy consumption; Hard disks; Hydrodynamics; Magnetic heads; Numerical simulation; Vibrations; Visualization;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.917627
Filename
917627
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