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TECHNICAL PAPERS

Effects of Thermal Conductivity of Contacting Surfaces on Point EHL Contacts

[+] Author and Article Information
M. Kaneta

Department of Mechanical and Control Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan

P. Yang

Department of Mechanical Engineering, Qingdao Institute of Architecture and Engineering, Qingdao 266033, China

J. Tribol 125(4), 731-738 (Sep 25, 2003) (8 pages) doi:10.1115/1.1540121 History: Received July 02, 2002; Revised November 05, 2002; Online September 25, 2003
Copyright © 2003 by ASME
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References

Grubin, A. N., and Vinogradova, I. E., 1949, Investigation of the Contact of Machine Components, Book No. 30, Central Scientific Research Institute for Technology and Mechanical Engineering, Moscow.
Dowson, D., and Higginson, G. R., 1966, Elastohydrodynamic Lubrication, Pergamon, Oxford.
Gohar,  R., and Cameron,  A., 1967, “The Mapping of Elastohydrodynamic Contacts,” ASLE Trans., 10, pp. 215–225.
Qu,  S., Yang,  P., and Guo,  F., 2000, “Theoretical Investigation on the Dimple Occurrence in the Thermal EHL of Simple Sliding Steel-Glass Circular Contacts,” Tribol. Int., 33, pp. 59–65.
Guo,  F., Yang,  P., and Qu,  S., 2001, “On the Theory of Thermal Elastohydrodynamic Lubrication at High Slide-Roll Ratios—Circular Glass-Steel Contact Solution at Opposite Sliding,” ASME J. Tribol., 123, pp. 816–821.
Yang,  P., Qu,  S., Kaneta,  M., and Nishikawa,  H., 2001, “Formation of Steady Dimples in Point TEHL Contacts,” ASME J. Tribol., 123, pp. 42–49.
Cameron,  A., 1951, “Hydrodynamic Lubrication of Rotating Disks in Pure Sliding, A New Type of Oil Film Formation,” J. Inst. Pet., 37, pp. 471–485.
Kaneta,  M., Nishikawa,  H., Kameishi,  K., and Sakai,  T., 1992, “Effects of Elastic Moduli of Contact Surfaces in Elastohydrodynamic Lubrication,” ASME J. Tribol., 114, pp. 75–80.
Kaneta,  M., Nishikawa,  H., Kanada,  T., and Matsuda,  K., 1996, “Abnormal Phenomena Appearing in EHL Contacts,” ASME J. Tribol., 118, pp. 886–892.
Foord,  C. A., Wedeven,  L. D., Westlake,  F. J., and Cameron,  A., 1969/1970, “Optical Elastohydrodynamics,” Proc. Inst. Mech. Eng., 184,Part 1, No. 28, pp. 487–505.
Larsson,  R., Larsson,  P. O., Eriksson,  E., Sjoberg,  M., and Hoglund,  E., 2000, “Lubricant Properties for Input to Hydrodynamic and Elastohydrodynamic Lubrication Analyses,” Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol., 214, pp. 17–27.
Roelands, C. J. A., 1966, “Correlation Aspects of Viscosity-Temperature-Pressure Relationship of Lubricating Oils,” Ph.D. thesis, Delft University of Technology, Netherlands.
Venner, C. H., 1991, “Multilevel Solution of the EHL Line and Point Contact Problems,” Ph.D. thesis, Twente University, Enschede, Netherlands.
Brandt,  A., and Lubrecht,  A. A., 1990, “Multilevel Matrix Multiplication and Fast Solution of Integral Equations,” J. Comput. Phys., 90, pp. 348–370.
Kim,  H. J., Ehret,  P., Dowson,  D., and Taylor,  C. M., 2001, “Thermal Elastohydrodynamic Analysis of Circular Contacts—Part 1: Newtonian Model,” Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol., 215, pp. 339–352.
Liu, X., 2002, “Analysis of the Thermal EHL of the Finite Line Contacts and Non-Newtonian Point Contacts,” Master thesis, Qingdao Institute of Architecture and Engineering, Qingdao, China (in Chinese).
Yang, P., Kaneta, M., and Masuda, S., 2003, “Quantitative Comparisons Between Measured and Solved EHL Dimples in Point Contacts,” ASME J. Tribol., 125 , to be published.

Figures

Grahic Jump Location
Comparison of experimental and numerical results: ue=0.36 m/s, pH=0.54 GPa, W=2.1×10−6; Experiment: t0=21°C,U=2.9×10−10,G=2778; Simulation: t0=20°C,U=3.2×10−10,G=2812
Grahic Jump Location
Numerical results; ue=0.8 m/s, U=7.1×10−10,G=2812,W=2.1×10−6
Grahic Jump Location
Velocity distributions across the film at various positions corresponding to the numerical cases of ∑=−1 and ∑=1 in Fig. 1
Grahic Jump Location
Comparison of middle layer temperatures obtained for: (a) the full solution (Fig. 4(a)); and (b) the solution neglecting the compression work (Fig. 9)
Grahic Jump Location
Numerical results for the case shown in Fig. 4(a) but the compression work is not considered: ∑=0, ue=0.8 m/s, U=7.1×10−10,G=2812,W=2.1×10−6
Grahic Jump Location
Numerical results at a heavy load for the virtual steel-actual glass contact; ue=0.8 m/s, pH=1.0 GPa, U=7.1×10−10,G=2812,W=1.3×10−5
Grahic Jump Location
Velocity distributions across the film at various positions corresponding to the cases of ∑=1 in Figs. 4 and 5: (a) Virtual steel-actual glass contact; and (b) virtual glass-actual steel contact
Grahic Jump Location
Numerical results for the virtual glass-actual steel contact; ue=0.8 m/s, U=7.1×10−10,G=2812,W=2.1×10−6
Grahic Jump Location
Numerical results for the virtual steel-actual glass contact; ue=0.8 m/s, U=7.1×10−10,G=2812,W=2.1×10−6
Grahic Jump Location
Numerical results at a heavy load for the virtual glass-actual steel contact; ue=0.8 m/s, pH=1.0 GPa, U=7.1×10−10,G=2812,W=1.3×10−5

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