Reduction of disk flutter by decreasing disk-to-shroud spacing

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...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 35; no. 5; pp. 2301 - 2303
Main Authors Imai, S., Tokuyama, M., Yamaguchi, Y.
Format Journal Article Conference Proceeding
LanguageEnglish
Published New York, NY IEEE 01.09.1999
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Artificial intelligence
Asia
Drives
Electronics
Exact sciences and technology
Hard disks
Information retrieval
Laboratories
Magnetic device characterization, design, and modeling
Magnetic devices
Mechanical engineering
Memory
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Testing
Vibrations
Theoretical study
Spacing
Flutter
Vibration
Hard disk
Magnetic recording
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Summary: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.
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ISSN:0018-9464
1941-0069
DOI:10.1109/20.800806