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TECHNICAL PAPERS

Nanoscale Effect on Ultrathin Gas Film Lubrication in Hard Disk Drive

[+] Author and Article Information
Yongqing Peng, Xinchun Lu, Jianbin Luo

State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China

J. Tribol 126(2), 347-352 (Apr 19, 2004) (6 pages) doi:10.1115/1.1614824 History: Received February 11, 2003; Revised July 29, 2003; Online April 19, 2004
Copyright © 2004 by ASME
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References

Shen,  X. J., and Bogy,  D. B., 2003, “Particle Flow and Contamination in Slider Air Bearings for Hard Disk Drives,” ASME J. Tribol., 125(2), pp. 358–363.
Zhang,  B., and Nakajima,  A., 2003, “Possibility of Surface Force Effect in Slider Air Bearings of 100 Gbit/in2 Hard Disks,” Tribol. Int., 36, pp. 291–296.
Zhou,  L., Kato,  K., , 2003, “The Effect of Slider Surface Texture on Flyability and Lubricant Migration Under Near Contact Conditions,” Tribol. Int., 36, pp. 269–277.
Burgdorfer,  A., 1959, “The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings,” ASME J. Basic Eng., 81(3), pp. 94–100.
Kennard, E. H., 1938, Kinetic Theory of Gases, McGraw-Hill.
Hisa,  Y. T., and Domoto,  G. A., 1983, “An Experimental Investigation of Molecular Rarefaction Effects in Gas Lubricated bearings at Ultra-Low Clearances,” ASME J. Lubr. Technol., 105, pp. 120–130.
Mitsuya,  Y., 1993, “Modified Reynolds Equation for Ultra-Thin Film Gas Lubrication Using 1.5-Order Slip-Flow Model and Considering Surface Accommodation Coefficient,” ASME J. Tribol., 115, pp. 289–294.
Odaka,  T., Tanaka,  K., Takeuchi,  Y., and Saitoh,  Y., 1986, “Analysis of Lubricated Bearing Performance With Very Low Clearances,” Trans. Jpn. Soc. Mech. Eng., Ser. C, 52, No. 475-C, pp. 1047–1056.
Gans,  R. F., 1985, “Lubrication Theory at Arbitrary Knudsen Number,” ASME J. Tribol., 107, pp. 431–433.
Fukui,  S., and Kaneko,  R., 1988, “Analysis of Ultra-Thin Gas Film Lubrication Based on Linearized Boltzmann Equation: First Report-Derivation of a Generalized Lubrication Equation Including Thermal Creep Flow,” ASME J. Tribol., 110, pp. 253–262.
Fukui,  S., and Kaneko,  R., 1990, “A Database for Interpolation of Poiseuille Flow Rates for High Knudsen Number Lubrication Problems,” ASME J. Tribol., 112, pp. 78–83.
Bird, G. A., 1976, Molecular Gas Dynamics, Oxford University Press.
Chapman, S., and Cowling, T. G., 1939, The Mathematical Theory of Nonuniform Gases, Cambridge University Press.
Abramowita, M., and Stegun, I. A., 1969, Handbook of Mathematical Functions, Dover.
Cercignani,  C., and Pagani,  D. A., 1966, “Variational Approach to Boundary-Value Problems in Kinetic Theory,” Phys. Fluids, 9(6), pp. 1167–1173.

Figures

Grahic Jump Location
Collisions between the molecules and boundary
Grahic Jump Location
Nanoscale effect function
Grahic Jump Location
Dimensions of slider and coordinate systems
Grahic Jump Location
Comparison of nondimensional flow rate resulting from different models
Grahic Jump Location
Comparison of load-capacity resulting from different Reynolds equations

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