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RESEARCH PAPERS

Self-Loading Slider Dynamics for Noncontact Start Stop Operation With Negative Pressure Air-Lubricated Slider Bearing in Magnetic Disk Storage

[+] Author and Article Information
N. Tagawa, M. Hashimoto

Terminal Systems Research Laboratory, C&C Systems Research Laboratories, NEC Corporation, Kawasaki-shi, Kanagawa 213, Japan

J. Tribol 111(4), 698-702 (Oct 01, 1989) (5 pages) doi:10.1115/1.3261997 History: Received March 24, 1989; Online October 29, 2009

Abstract

This paper proposes self-loading flying head slider mechanisms to be used for information storage on magnetic disk media under noncontact start/stop mode conditions. The mechanisms consist of a zero-load negative pressure air-lubricated slider bearing, a slider suspension mechanism, and a twin-structure piezoelectric actuator as the head loading mechanism. Experimental research was carried out on fundamental flying characteristics for the slider. The dynamics of a self-loading/unloading negative pressure air-lubricated slider bearing were successfully studied in detail with a laser Doppler vibrometer. No intermittent contact between head and disk was observed in either the self-load or unload cases. A theoretical study on the self-loading phenomenon was carried out, and its conclusions were in good agreement with the experimental results. This suggests the feasibility of achieving a high head/disk interface reliability and, in particular, of overcoming problems regarding stiction and tribology between head and disk.

Copyright © 1989 by ASME
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