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Article

Experimental Identification of Elastic, Damping and Adhesion Forces in Collision of Spherical Sliders With Stationary Magnetic Disks

[+] Author and Article Information
Kyosuke Ono

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

Satoshi Ohara

OLYMPUS Corporation 2-3, Kuboyama-cho, Hachioji-shi, Tokyo, 192-8512 Japan

J. Tribol 127(2), 365-375 (Apr 07, 2005) (11 pages) doi:10.1115/1.1843831 History: Received March 25, 2004; Revised October 06, 2004; Online April 07, 2005
Copyright © 2005 by ASME
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References

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Figures

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Experimental setup for measurement of collision motion of a spherical slider
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Glass slider and AFM image of the surface of the slider
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Bouncing motion of the slider on Al disk
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Collision motion of Al2O3TiC slider on Al disks at various lubricant thicknesses
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Collision motion of glass slider on Al disks at various lubricant thicknesses
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Coefficients of restitution of Al2O3TiC slider in collision with Al disk as a function of lubricant thickness
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Coefficients of restitution e1 and e2 of glass slider on Al disk as a function of lubricant thickness (e1: Ratio of the maximum rebound velocity to minimum approaching velocity), e2: Ratio of the velocity at the end of separation process to the minimum approaching velocity)
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1-DOF model of a spherical slider and disk system
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Displacement of bouncing motion of the glass slider on Al disk surface with a lubricant layer of 3 nm thickness
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Comparison between the measured and fitted bounce motions of the glass slider on Al disks at various lubricant thicknesses
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Measured elastic force factors for Al2O3TiC slider with Al disks at various lubricant thicknesses
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Measured elastic force factors of the glass slider with Al disks at various lubricant thicknesses
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Measured damping force factors Cdr in collision between Al2O3TiC slider and Al disks of various lubricant thicknesses (Cdp<105 Ns/m2)
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Measured damping force factors Cdp and Cdr in collision between glass slider and Al disks of various lubricant thicknesses
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Static pull-off forces of Al2O3TiC and glass sliders from Al disks of various lubricant thicknesses
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Dynamic adhesion force of glass slider in collision with Al disks of various lubricant thicknesses

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