Dynamics for Micromachined Mother Ship Negative Pressure Slider Bearings With an Integrated Microsuspension Mechanism in Proximity Magnetic Recording

[+] Author and Article Information
Norio Tagawa, Atsunobu Mori

21 Department of Mechanical Engineering, Kansai University, Suita, Osaka 564-8680 Japan

Hiroshi Kajitani, Masanobu Hashimoto

Functional Devices Research Laboratories, NEC Corporation, Kawasaki, Kanagawa 216-8555 Japan

J. Tribol 121(4), 989-994 (Oct 01, 1999) (6 pages) doi:10.1115/1.2834167 History: Received September 15, 1998; Revised May 11, 1999; Online January 24, 2008


This paper describes head/disk interface dynamics for micromachined mother ship negative pressure slider bearings with an integrated microsuspension mechanism that we proposed, at steady-state flying in proximity magnetic recording. The authors first indicated the analytical model for air bearing dynamics of mother ship slider mechanisms, and the advantages of the mechanisms were discussed from the dynamics points of view, compared with conventional flying head slider mechanisms. Dynamic design considerations and optimization for micromachined mother ship negative pressure slider bearings with an integrated microsuspension mechanism were also investigated. Finite element simulation for the stiffness analysis of a microsuspension mechanism was carried out and the design optimization for low stiffness gimbals was studied. Furthermore, the effects of slider mass ratio and slider car film stiffness ratio of a secondary slider to a primary slider on mother shipslider dynamics were analyzed numerically. Considering those numerical simulationresults, system optimization for sliders as well as microsuspension gimbals was established to achieve head/disk interface reliability in high density proximity magnetic recording.

Copyright © 1999 by The American Society of Mechanical Engineers
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