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TECHNICAL PAPERS

Dynamic Characteristics and Design Consideration of a Tripad Slider in the Near-Contact Regime

[+] Author and Article Information
Kohei Iida

Graduate school of Science and Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japane-mail: koiida@jcom.home.ne.jp

Kyosuke Ono

Department of Mechanical and Control Engineering, Tokyo Institute of Technology

Masami Yamane

Graduate school of Science and Engineering, Tokyo Institute of Technology

J. Tribol 124(3), 600-606 (May 31, 2002) (7 pages) doi:10.1115/1.1467089 History: Received May 04, 2001; Revised November 02, 2001; Online May 31, 2002
Copyright © 2002 by ASME
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References

Menon, A. K., 1999, “Critical Requirement For 100 Gb/in2 Head/Media Interface,” ASME Proceedings of the Symposium on Interface Technology Towards 100 Gbit/in2 , ASME, New York, pp. 1–9.
Hamilton,  H., Anderson,  R., and Goodson,  K., 1991, “Contact Perpendicular Recording on Rigid Media,” IEEE Trans. Magn., 27, pp. 4921–4926.
Danson,  D. P., 1996, “Pseudo-Contact Recording,” IDEMA INSIGHT, 9(3), pp. 1–2.
Ono,  K., Iida,  K., and Takahashi,  K., 1999, “Effects of Design Parameters on Bouncing Vibrations of a Single-DOF Contact Slider and Necessary Design Conditions for Perfect Contact Sliding,” ASME J. Tribol., 121, pp. 596–603.
Ono,  K., and Iida,  K., 2000, “Statistical Analysis of Perfect Contact and Wear Durability Conditions of a Single-Degree-of-Freedom Contact Slider,” ASME J. Tribol., 122, pp. 238–245.
Ono,  K., and Takahashi,  K., 1999, “Analysis of Bouncing Vibrations of a 2-DOF Tripad Contact Slider Model With Air Bearing Pads Over a Harmonic Wavy Disk Surface,” ASME J. Tribol., 121, pp. 939–947.
Iida,  K., and Ono,  K., 2001, “Analysis of Bouncing Vibrations of a 2-DOF Model of Tripad Contact Slider Over a Random Wavy Disk Surface,” ASME J. Tribol. 123, pp. 159–167.
Kusumi, T., Yamakawa, K., and Ouchi, K., 2000, “Wear Characteristics Study of the Head Slider for Durable Contact Recording,” Technical Report of IEICE, 100 , No. 337, pp. 1–6 (in Japanese).
Ono,  K., Takahashi,  K., and Iida,  K., 1999, “Computer Analysis of Bouncing Vibration and Tracking Characteristics of a Point Contact Slider Model Over Random Disk Surfaces,” ASME J. Tribol., 121, pp. 587–595.

Figures

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Geometry of a typical tripad slider
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Analytical model of a tripad slider
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Typical time histories of slider vibrations and disk surface waviness (FH=1.0 nm,p=1.5,xcr=62.5 μm)
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The effect of the distance between the head-gap and the rear air bearing center on spacing variations (FH=1.0 nm,p=1.5,r=10)
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The frequency response functions of the spacing variations to the disk surface waviness (FH=1.0 nm,p=1.5,r=10)
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1-DOF model of the head disk interface
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Maximum spacing versus nominal flying height
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Rms contact force versus nominal flying height
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Effects of friction coefficient on maximum spacing and rms friction force
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Effect of the distance between the head-gap and the rear air bearing center
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Time histories of slider vibrations for various values of xcr

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