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TECHNICAL PAPERS

Analysis of Bouncing Vibrations of a 2-DOF Model of Tripad Contact Slider Over a Random Wavy Disk Surface

[+] Author and Article Information
Kohei Iida

Graduate School of Mechanical Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan

Kyosuke Ono

Department of Mechanical Engineering and Science, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan

J. Tribol 123(1), 159-167 (Sep 19, 2000) (9 pages) doi:10.1115/1.1330743 History: Received April 13, 2000; Revised September 19, 2000
Copyright © 2001 by ASME
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References

Talke,  F. E., 1997, “A Review of ‘Contact Recording’ Technologies,” Wear, 207, pp. 118–121.
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, No. 3, pp. 1–2.
Yanagisawa,  M., Sato,  A., and Ajiki,  K., 1998, “Lubricant Design for Contact Recording Systems,” IEICE Trans. Electron., E81-C, No. 3, pp. 343–348.
Itoh,  J., Tanimoto,  K., and Ohtsubo,  Y., 1997, “Development of Contact Recording Head for HDD,” IEEE Trans. Magn., 33, pp. 3139–3141.
Menon, A. K., 1999, “Critical Requirement For 100 Gb/in2 Head/Media Interface,” ASME Proceedings of the Symposium on Interface Technology Towards 100Gbit/in2, pp. 1–9.
Ono,  K., Yamaura,  H., and Mizokoshi,  T., 1995, “Computer Analysis of the Dynamic Contact Behavior and Tracking Characteristics of a Single-Degree-of-Freedom Slider Model for a Contact Recording Head,” ASME J. Tribol., 117, pp. 124–129.
Ono,  K., and Takahashi,  K., 1997, “Bouncing Vibration and Complete Tracking Conditions of a Contact Recording Slider Model on a Harmonic Wavy Disk Surface,” ASME J. Tribol., 119, pp. 720–725.
Ono,  K., and Maruyama,  H., 1998, “An Experimental Study about the Bouncing Vibration of a Contact Slider,” Adv. Info. Storage Syst., 8, pp. 33–48.
Ono,  K., Iida,  K., and Takahashi,  K., 1997, “Effect of Slider Mass, Contact Stiffness and Contact Damping on Bouncing Vibrations of a Single-DOF Contact Slider Model,” Trans. Jpn. Soc. Mech. Eng., Ser. C, 63, No, 614, pp. 3352–3360.
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.
Tsuchiyama,  R., 1998, “Simulation of Dynamic Characteristics of a Three-Wear-Pad Contact Slider Subjected to Wavy Excitation and Collision,” Adv. Info. Storage Syst., 9, pp. 203–214.
Cha,  E., and Bogy,  D. B., 1995, “Numerical Simulations of Slider Interaction With Multiple Asperity Using Hertzian Contact Model,” ASME J. Tribol., 117, pp. 575–579.
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.
Hsia,  Y. T., and Donovan,  M. J., 1996, “A New Wear Measurement Technique for Pseudo-Contact Magnetic Recording Heads,” IEEE Trans. Magn., 32, pp. 3350–3352.
Wahl,  M. H., Kwon,  H., and Talke,  F. E., 1998, “Simulation of Asperity Contact at the Head/Disk Interface of Tri-Pad Sliders During Steady-State Flying,” Tribol. Trans., 40, No. 1, pp. 75–80.
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Bushan,  B., 1996, “Contact Mechanics pf Rough Surface in Tribology: Single Asperity Contact,” Appl. Mech. Rev., 49, pp. 275–298.

Figures

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Geometry of a typical tri-pad contact slider
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Analytical model of a tri-pad contact slider
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Typical time histories of slider vibrations and disk surfaces (ζc=0.2, μ=1.0, σ=1.0 nm, p=1.5)
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Typical frequency response functions of spacing (ζc=0.2, μ=1.0, σ=1.0 nm, p=1.5)
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Effect of coefficient of friction on maximum spacing and contact force (ζc=0.2, σ=1.0 nm, p=1.5)
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Maximum spacing and maximum contact force versus the standard deviation of the disk surface waviness (ζc=0.2, μ=1.0)
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Maximum spacing and maximum contact force versus the standard deviation of the disk surface waviness (ζc=0.2, μ=10)
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Comparison between simulated and analytical perfect contact sliding condition (ζc=0.2,kf=5.0×104 N/m,r=0.01)
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The geometry near the trailing edge
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Geometrical increase of spacing (σ=1.0 nm)
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Effect of static equilibrium pitch angle on front spacing (ζc=0.2,kf=1.5×105 N/m, σ=1.0 nm, p=1.5)
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The design condition of sliders and disk surfaces (kf=1.5×105 N/m,r=0.01)

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