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TECHNICAL PAPERS

Starved Lubrication of Elliptical EHD Contacts

[+] Author and Article Information
B. Damiens, A. A. Lubrecht

Laboratoire de Mécanique des Contacts, UMR CNRS 5514, INSA de Lyon, France

C. H. Venner

University of Twente, Tribology Group, The Netherlands

P. M. E. Cann

Department of Mechanical Engineering, Tribology Section, Imperial College, London SW7 2BX, UK

J. Tribol 126(1), 105-111 (Jan 13, 2004) (7 pages) doi:10.1115/1.1631020 History: Received May 08, 2002; Revised October 08, 2002; Online January 13, 2004
Copyright © 2004 by ASME
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References

Chevalier,  F., Lubrecht,  A. A., Cann,  P. M. E., Colin,  F., and Dalmaz,  G., 1998, “Film Thickness in Starved EHL Point Contacts,” ASME J. Tribol., 120, pp. 126–133.
Dowson,  D., and Higginson,  G. R., 1959, “A Numerical Solution to the Elastohydrodynamic Problem,” J. Mech. Eng. Sci., 1, pp. 6–15.
Hamrock,  B. J., and Dowson,  D., 1976, “Isothermal Elastohydrodynamic Lubrication of Point Contacts, Part I, Theoretical Formulation,” ASME J. Lubr. Technol., 98, pp. 223–229.
Wedeven,  L. D., Evans,  D., and Cameron,  A. C., 1971, “Optical Analysis of Ball Bearing Starvation,” ASME J. Lubr. Technol., 93, pp. 349–363.
Pemberton,  J., and Cameron,  A. C., 1976, “A Mechanism of Fluid Replenishement in Elastohydrodynamic Contacts,” Wear, 37, pp. 185–190.
Kingsbury,  E., 1973, “Cross Flow in a Starved EHD Contact,” ASLE Trans., 16, pp. 276–280.
Chiu,  Y. P., 1974, “An Analysis and Prediction of Lubricant Starvation in Following Contact Systems,” ASLE Trans., 16, pp. 276–280.
Guangteng,  G., Cann,  P. M. E., and Spikes,  H. A., 1992, “A Study of Parched Lubrication,” Wear, 153, pp. 91–105.
Moes, H., 2000, “Lubrication and Beyond,” technical report, code 115531, University of Twente, Enschede, The Netherlands.
Elrod,  H. G., 1981, “A Cavitation Algorithm,” ASME J. Lubr. Technol., 103, pp. 350–354.
Elrod, H. G., and Adams, M. L., 1974, “A Computer Program for Cavitation and Starvation Problems,” Proceedings of the 1st Leeds-Lyon Symposium on Tribology, pp. 37–41.
Wijnant, Y. H., 1998, “Contact Dynamics in the Field of Elastohydrdynamic Lubrication,” Ph.D. thesis, University of Twente, Enschede, the Netherlands, (ISBN:90-36512239).
Ertel, A. M., 1939, “Hydrodynamic Lubrication Based on New Principles,” Akad. Nauk SSSR Prikadnaya Mathematica i Mekhanika, 3 (2), pp. 41–52.
Grubin, A. N., 1949, Fundamentals of the Hydrodynamic Theory of Lubrication of Heavily Loaded Cylindrical Surfaces, Central Scientific Research Institute for Technology and Mechanical Engineering, Book no. 30, Moscow, D.S.I.R. translations.
Wedeven, L. D., 1970, “Optical Measurements in Elastohydrodynamic Rolling-Contact Bearings,” Ph.D. thesis, Imperial College, London.
Hooke,  C. J., and Venner,  C. H., 2000, “Surface Roughness Attenuation in Line and Point Contacts,” Proc. Inst. Mech. Eng., 214, pp. 439–444.
Venner, C. H., and Lubrecht, A. A., 2000, MultiLevel Methods in Lubrication, Elsevier (ISBN 0-444-50503-2).
Chevalier, F., 1996, “Modélisation des Conditions d’Alimentation dans les Contacts EHD Ponctuels,” Ph.D. thesis, INSA-LYON.
Johnston,  G. J., Wayte,  R., and Spikes,  H. A., 1991, “The Measurement and Study of Very Thin Lubricant Films in Concentrated Contacts,” STLE Tribol. Trans., 34, pp. 187–194.
Cann, P. M. E., and Chevalier, F., and Lubrecht, A. A., 1996, “Track Depletion an Replenishement in a Grease Lubricated Point Contact: A Quantitative Analysis,” Leeds-Lyon Symposium on Tribology, pp. 405–414.

Figures

Grahic Jump Location
Film thickness as a function of speed (circular contact)—starvation occurs at 0.06 [m/s], full line h∝u0.67
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Elliptical contact in the dimensionless domain D
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R=f(r) for a circular contact with M=10 and L=20,γ=2.66
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γ as a function of M for a circular contact for L=2, 5, 10, 20, r≃1
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γ as a function of M/L for a circular contact for r≃1,L=2, 5, 10, 20, and M=10, 30, 100, 300, 1000, r≃1
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γ as a function of M/L for different ellipticities: κ=0.14, 0.22, 0.35, 0.63, 1.00, r≃1
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Starved elliptical contact
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Experimental film decay for a circular contact κ=1(um=96.6 mms−1)
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Experimental film decay for an elliptical contact κ=0.270(um=39.8 mms−1)
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Experimental γ values as a function of M/L for a circular (κ=1) and elliptical (κ=0.27) contact.
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γ as a function of M/L for a circular contact κ=1. Lines and open symbols are numerical predictions.
Grahic Jump Location
γ as a function of M/L for an elliptical contact κ=0.270. Lines and open symbols are numerical predictions.
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R as a function of γ and r

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