Title :
Reduction of disk flutter by decreasing disk-to-shroud spacing
Author :
Imai, Satomitsu ; Tokuyama, Mikio ; Yamaguchi, Yuzo
Author_Institution :
Data Storage & Retrieval Syst. Div., Hitachi Ltd., Kanagawa, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
Faster rotation speed in hard disk drives has increased disk flutter which causes head-positioning errors. The flutter reduction effects of various disk-to-shroud spacings in order to reduce disk flutter amplitudes have been investigated. In the experiments using 3.5 and 2.5 inch disks, we confirmed that the flutter amplitudes decrease when the spacing is less than about 0.5 mm. This effect was also confirmed when we changed the disk rotational speed and the shroud length
Keywords :
disc drives; hard discs; magnetic recording; vibrations; 2.5 inch; 3.5 inch; decreasing disk-to-shroud spacing; disk flutter amplitudes; disk flutter reduction; disk rotational speed; faster rotation speed; hard disk drives; head-positioning errors; shroud length; Artificial intelligence; Asia; Drives; Hard disks; Information retrieval; Laboratories; Mechanical engineering; Memory; Testing; Vibrations;
Journal_Title :
Magnetics, IEEE Transactions on
