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TECHNICAL PAPERS

Formation Mechanism of Steady Multi-Dimples in Thermal EHL Point Contacts

[+] Author and Article Information
M. Kaneta, P. Yang

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

J. Tribol 125(2), 241-251 (Mar 19, 2003) (11 pages) doi:10.1115/1.1506318 History: Received June 28, 2001; Revised July 02, 2002; Online March 19, 2003
Copyright © 2003 by ASME
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References

Figures

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Schematic diagram of the experimental apparatus
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Interferograms and film profiles obtained experimentally, pH=0.36 GPa,R=38.1 mm,G=6271, and W=5.77×10−7
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Time sequence of interferograms obtained experimentally, pH=0.36 GPa,R=38.1 mm,U=1.34×10−11,G=6271, and W=5.77×10−7
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Interferograms and film profiles obtained experimentally, pH=0.30 GPa,R=38.1 mm,G=6318, and W=3.46×10−7
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Theoretical thermal EHL results under pure-sliding conditions, pH=0.36 GPa,R=50 mm,G=3978, and W=6.02×10−7
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Theoretical thermal EHL results under pure-sliding conditions, pH=0.30 GPa,R=50 mm,G=3978, and W=3.48×10−7
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Effect of the slide-roll ratio on the formation of multi-dimples, pH=0.36 GPa,R=50 mm,Ue=2×10−11,G=3978, and W=6.02×10−7
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Pressure and film thickness surfaces for the 3-dimple solution shown in Fig. 4(a), pH=0.36 GPa,R=50 mm,Ue=1.25×10−11,G=3978, and W=6.02×10−7; (a) pressure distribution, (b) film thickness distribution
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Comparison between the compressible and incompressible solutions, pH=0.36 GPa,R=50 mm,Ue=2.0×10−11,G=3978, and W=6.02×10−7
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Comparison between the 4-level and 5-level solutions, pH=0.36 GPa,R=50 mm,Ue=2.0×10−11,G=3978, and W=6.02×10−7
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Pressure surfaces after the first and last W cycles for an isothermal solution with a step-function as the initial pressure, Ue=2.0×10−11,G=5000, and W=3.80×10−7: (a) pressure after the first W cycle; and (b) pressure after the last W cycle
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The dependence of the multi-dimples on the kinematic conditions. Case 1: disk-sliding, case 2: ball-sliding, case 3: isothermal. pH=0.36 GPa,R=50 mm,Ue=2.0×10−11,G=3978, and W=6.02×10−7

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