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Article

Experimental and Analytical Study of Bouncing Vibrations of a Flying Head Slider in a Near-Contact Regime

[+] Author and Article Information
Kyosuke Ono, Hiroshi Yamaura

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

Masami Yamane

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

J. Tribol 127(2), 376-386 (Apr 07, 2005) (11 pages) doi:10.1115/1.1843165 History: Received January 22, 2004; Revised October 22, 2004; Online April 07, 2005
Copyright © 2005 by ASME
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References

Fukui, S., Kogure, K., and Mistuya, Y., 1985, “Dynamic Characteristics of Flying-head Slider on Running Wavy Disk,” ASLE-ASME Tribology Conference, Vol. 2, pp. 52–58.
Zhu, L.-Y., and Bogy, D. B., 1989, “Head-Disk Spacing Fluctuation Due To Disk Topography in Magnetic Recording Hard Disk Files,” Tribology and Mechanics of Magnetic Storage Systems, STLE Special Publication SP-26, pp. 160-167.
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, 159–167.
Iida,  K., Ono,  K., and Yamane,  M., 2002, “Dynamic Characteristics and Design Consideration of a Tripad Slider in the Near-Contact Regime,” ASME J. Tribol., 124, 600–606.
Knigge,  B., and Talke,  F. E., 2001, “Nonlinear Dynamic Effects at the Head Disk Interface,” IEEE Trans. Magn., 37, 900–905.
Tanaka,  H., Yonemura,  S., and Toisue,  H., 2001, “Slider Dynamics during Continuous Contact with Textured and Smooth Disk in Ultra Low Flying Heigh,” IEEE Trans. Magn., 37, 906–911.
Wang,  R. H., Nayak,  V., Huang,  F. Y., Tang,  W., and Lee,  F., 2001, “Head-Disk Dynamics in the Flying, Near Contact, and Contact Regimes,” ASME J. Tribol., 123, 561–565.
Kohira,  H., Tanaka,  H., Matsumoto,  M., and Talke,  F. E., 2001, “Investigation of Slider Vibrations Due to Contact with a Smooth Disk Surface,” ASME J. Tribol., 123, 616–623.
Stanly,  H. M., Etsion,  I., and Bogy,  D. B., 1990, “Adhesion of Contacting Rough Surfaces in the Presence of Sub-Boundary Lubrication,” ASME J. Tribol., 112, 98–104.
Polycarpou,  A. A., and Etsion,  I., 1998, “Static Friction of Contacting Real Surfaces in the Presence of Sub-Boundary Lubrication,” ASME J. Tribol., 120, 296–303.
Hua,  W., Liu,  B., and Sheng,  G., 1999, “Probability Model and Its Application on the Interaction of Nano-Spaced Slider/Disk Interface,” IEICE Trans. Electron., E82-C(12), 2139–2147.
Wu,  L., and Bogy,  D. B., 2002, “Effect of the Intermolecular Forces on the Flying Attitude of Sub-5 NM Flying Height Air Bearing Sliders in Hard Disk Drives,” ASME J. Tribol., 124, 562–567.
Matsuoka,  H., Fukui,  S., and Kato,  T., 2002, “Dynamic Characteristics of an In-Contact Head Slider Considering Meniscus Force: Part 3-Wear Durability and Optimization of Surface Energy of Liquid Lubricant Under Perfect Contact Condition,” ASME J. Tribol., 124, 801–810.
Xu, J., Kohira H., and Saegusa, S., 2002, “Contact ABS Design Concepts,” Proceedings of 2002 ASME/STLE Joint International Tribology Conference, TRIB-253.
Honchi,  M., Kohira,  H., and Matsumoto,  M., 2003, “Numerical Smulation of Slider Dynamics during Slider-Disk Contact,” Tribol. Int., 36, 235–240.
Iida,  K., and Ono,  K., 2003, “Design Consideration of Contact/Near-Contact Sliders Based on a Rough Surface Contact Model,” ASME J. Tribol., 125, 562–570.
Derjaguin,  B. V., Muller,  V. M., and Toporov,  Yu. P., 1975, “Effect of Contact Deformations on the Adhesion of Particles,” J. Colloid Interface Sci., 53, 314–326.
Fuller,  K. N. G., and Tabor,  D., 1975, “The Effect of Surface Roughness on the Adhesion of Elastic Solids,” Proc. R. Soc. London, Ser. A, 345, 327–342.
Matsuoka,  H., Fukui,  S., and Kato,  T., 2002, “Nanomeniscus Forces in Undersaturated Vapors: Observable Limit of Macroscopic Characteristics,” Langmuir, 18, 6796–6801.
Ono,  K., and Suzuki,  A., 1998, “Analysis of the Friction-Induced Self-Excited Vibration of a Contact Recording Head Slider,” Adv. Inf. Storage Syst., 8, 3–16.
Ono, K., and Ohara, S., “Experimental Identification of Elastic, Damping and Adhesion Forces in Collision of Spherical Sliders with Stationary Magnetic Disks,” Proceedings of 2004 ASME/STLE International Joint Tribology Conference and ASME Transactions of Journal of Tribology (to be published).
Mate, C. M., Dai, Q., Payne, R. N., Knigge B. E., and Baumgart, P., “Will the Numbers Add Up for Sub 7 nm Magnetic Spacing? Future Metrology Issues for Disk Drive Lubricants, Overcoats and Topographies,” Proceedings of TMRC 2004, 11–13, August 2004.

Figures

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Outline of experimental setup
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Air-bearing surface of slider used for the experiment
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Experimental results of bouncing vibrations of a slider when the flying height is decreased and increased by changing ambient pressure: (a) in touch-down point (0.4 atm), (b) during touch-down and take-off point (0.5 atm), and (c) take-off point (0.56 atm)
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2-DOF slider model for analysis
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Calculated adhesion force of lubricant, real contact force and total contact force (see Ref. 16)
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Hysteresis characteristics of bouncing vibration (N=5.0,μ=3.0,kf0=5.0×105 N/m,kr0=3.0×105 N/m)
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Calculated results of displacement time history and velocity frequency spectrum at the head gap position of a slider (N=5.0,μ=3.0,kf0=5.0×105 N/m,kr0=3.0×105 N/m): (a) nominal flying height=5.8 nm and (b) nominal flying height=9.5 nm
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The maximum zp values of slider vs nominal flying height after imposing disturbances for various values of front and rear air-bearing stiffness (N=5.0,μ=3.0)
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Calculated time history of displacement and frequency spectrum of velocity at head gap position (N=5.0,μ=3.0,kf0=1.0×105 N/m,kr0=6.0×105 N/m,FH=4.5 nm): (a) time history of trailing edge motion and (b) frequency spectrum of trailing edge velocity
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Calculated time history of displacement and frequency spectrum of velocity at head gap position. (N=5.0,μ=3.0,kf0=5.0×105 N/m,FH=7.8 nm)
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Calculated time history of displacement and frequency spectrum of velocity at head gap position (N=5.0,μ=3.0,kf0=5.0×105 N/m,FH=6.0 nm)
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Stick figures of bouncing vibration, natural frequencies, and nodal points of a flying slider for various values of air-bearing stiffness
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The maximum zp values of slider vs nominal flying height after imposing disturbances for various values of the magnification number and frictional coefficient (kf0=5.0×105 N/m,kr0=6.0×105 N/m)
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Collision motion of glass slider on Al disks at various lubricant thicknesses: (a) zero lubricant thickness, (b) 1 nm lubricant thickness, (c) 2 nm lubricant thickness, and (d) 3 nm lubricant thickness

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