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.
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October 1999
Research Papers
Dynamics for Micromachined Mother Ship Negative Pressure Slider Bearings With an Integrated Microsuspension Mechanism in Proximity Magnetic Recording
Norio Tagawa,
Norio Tagawa
21 Department of Mechanical Engineering, Kansai University, Suita, Osaka 564-8680 Japan
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Atsunobu Mori,
Atsunobu Mori
21 Department of Mechanical Engineering, Kansai University, Suita, Osaka 564-8680 Japan
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Hiroshi Kajitani,
Hiroshi Kajitani
Functional Devices Research Laboratories, NEC Corporation, Kawasaki, Kanagawa 216-8555 Japan
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Masanobu Hashimoto
Masanobu Hashimoto
Functional Devices Research Laboratories, NEC Corporation, Kawasaki, Kanagawa 216-8555 Japan
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Norio Tagawa
21 Department of Mechanical Engineering, Kansai University, Suita, Osaka 564-8680 Japan
Atsunobu Mori
21 Department of Mechanical Engineering, Kansai University, Suita, Osaka 564-8680 Japan
Hiroshi Kajitani
Functional Devices Research Laboratories, NEC Corporation, Kawasaki, Kanagawa 216-8555 Japan
Masanobu Hashimoto
Functional Devices Research Laboratories, NEC Corporation, Kawasaki, Kanagawa 216-8555 Japan
J. Tribol. Oct 1999, 121(4): 989-994 (6 pages)
Published Online: October 1, 1999
Article history
Revised:
May 11, 1999
Online:
January 24, 2008
Citation
Tagawa, N., Mori, A., Kajitani, H., and Hashimoto, M. (October 1, 1999). "Dynamics for Micromachined Mother Ship Negative Pressure Slider Bearings With an Integrated Microsuspension Mechanism in Proximity Magnetic Recording." ASME. J. Tribol. October 1999; 121(4): 989–994. https://doi.org/10.1115/1.2834167
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