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TECHNICAL PAPERS

Extension of the Friction Mastercurve to Limiting Shear Stress Models

[+] Author and Article Information
B. Jacod, C. H. Venner

University of Twente, Faculty of Mechanical Engineering, P.O. Box 217, NL 7500 AE Enschede, The Netherlands

P. M. Lugt

SKF Engineering and Research Center B.V., P.O. Box 2350, NL 3430 DT Nieuwegein, The Netherlands

J. Tribol 125(4), 739-746 (Sep 25, 2003) (8 pages) doi:10.1115/1.1572513 History: Received January 03, 2002; Revised December 30, 2002; Online September 25, 2003
Copyright © 2003 by ASME
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References

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Kudish, I. I., 1981, “On Solution of some Contact and Elastohydrodynamic Problems,” Warsawa, 3rd International Tribology Congress EUROTRIB 81.
Jacod,  B., Venner,  C. H., and Lugt,  P. M., 2001, “A Generalized Traction Curve for EHL Contacts,” ASME J. Tribol., 123, pp. 248–253.
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Venner, C. H., and Lubrecht, A. A., 2000, Multilevel Methods in Lubrication, Tribology Series, 37, ed., D. Dowson, Elsevier, Amsterdam.
Bair,  S., 2000, “Pressure-Viscosity Behavior of Lubricants to 1.4 GPa and Its Relation to EHD Traction,” Tribol. Trans., 43, pp. 91–99.
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Figures

Grahic Jump Location
Rheological models. For the Eyring model τ0L/3.
Grahic Jump Location
Reduced friction coefficient, μ̄, as a function of τ̄c for the circular model, n=2
Grahic Jump Location
Reduced friction coefficient, μ̄, as a function of τ̄c(p*) for the circular model, n=2. Dashed line: Eq. 15.
Grahic Jump Location
Reduced friction coefficient, μ̄, as a function of τ̄c(p*) for the general model, n=1. Dashed line: Eq. 15.
Grahic Jump Location
Reduced friction coefficient, μ̄, as a function of τ̄c(p*) for the general model, n=1.8. Dashed line: Eq. 15
Grahic Jump Location
Reduced friction coefficient, μ̄, as a function of τ̄c(p*) for the Gecim and Winer’s model. Dashed line: Eq. 15.
Grahic Jump Location
Comparison between experimental results plotted as a function of (τ̄c(p*),μ̄) and Eq. 15
Grahic Jump Location
Comparison between experimental results plotted as a function of (τ̄c(p*),μ̄) and Eq. 15. The inlet temperatures have been slightly modified to account for thermal effects.
Grahic Jump Location
Comparison between η̄X/η̄ given by an analytical integration of Eq. 32, Eq. 35 and the relation given in 1. n=2,τ̄m=1−δτ̄.
Grahic Jump Location
Comparison between η̄Y/η̄ given by an analytical integration of Eq. 32, Eq. 35 and the relation given in 1. n=2,τ̄m=1−δτ̄.

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