DocumentCode
538367
Title
Flow excitation and damping forces on disk flutter in hard disk drives
Author
Eguchi, T.
Author_Institution
Mech. Eng. Res. Lab., Hitachi Ltd., Hitachinaka, Japan
fYear
2010
fDate
10-12 Nov. 2010
Firstpage
1
Lastpage
2
Abstract
This paper investigates mechanisms of flow excitation and damping force by air on rotating disks in hard disk drives and how to reduce disk flutter. Computational fluid dynamics simulate the disk flutter vibration and clarify its mechanism. The damping force by narrow disk-to-shroud gap has been theorized and reduction of disk flutter by a biased shroud is proposed as an application of the shroud damping effect.
Keywords
computational fluid dynamics; damping; disc drives; hard discs; vibrations; computational fluid dynamics; damping force; disk flutter reduction; disk flutter vibration; disk-to-shroud gap; flow excitation; hard disk drives; rotating disks; shroud damping effect; Airflow; Damping; Disk flutter; Flow excitation;
fLanguage
English
Publisher
ieee
Conference_Titel
APMRC, 2010 Digest
Conference_Location
Singapore
Print_ISBN
978-1-4244-8103-3
Type
conf
Filename
5682257
Link To Document