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TECHNICAL PAPERS

Elastohydrodynamic Lubrication Analysis of Gear Tooth Surfaces From Micropitting Tests

[+] Author and Article Information
J. Tao, T. G. Hughes, H. P. Evans, R. W. Snidle

Cardiff School of Engineering, Cardiff CF24 3TA, UK

N. A. Hopkinson, M. Talks, J. M. Starbuck

QinetiQ Ltd, Farnborough, GU14 0LX, UK

J. Tribol 125(2), 267-274 (Mar 19, 2003) (8 pages) doi:10.1115/1.1510881 History: Received February 19, 2002; Revised July 20, 2002; Online March 19, 2003
Copyright © 2003 by ASME
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References

Figures

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Profilometer traces for load stages 6 (upper profile), 7, 8, and 9 (lower profile) used in the analyses each offset by 2 μm from neighboring profiles for comparison. Profiles are drawn with metal below the curve.
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Pressure and film thickness variation at a timestep for load stage 6 with Model A. Also shown below are contours of τ/GPa for the sub-surface maximum shear stress.
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Pressure and film thickness variation at a timestep for load stage 9 with Model A. Also shown below are contours of τ/GPa for the sub-surface maximum shear stress.
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High pressure behavior curves of the four load cases each averaged over 7000 timesteps
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Low film thickness behavior curves for the four load cases each averaged over 7000 timesteps
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Pressure cycle counts obtained for the four load cases for a lower pressure cycle limit of 0.5 GPa, each averaged over 7000 timesteps
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High pressure behavior curves for the cases considered over the meshing cycle
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Pressure cycle counts obtained for a lower pressure cycle limit of 0.5 GPa for the three non-Newtonian models with load case 9
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Low film thickness behavior curves for the three non-Newtonian models with load case 9
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High pressure behavior curves for the three non-Newtonian models with load case 9
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Pressure and film thickness variation at a timestep for load stage 9 with Model C. Also shown below are contours of τ/GPa for the sub-surface maximum shear stress.
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Pressure cycle counts obtained for the cases considered over the meshing cycle for a lower pressure cycle limit of 0.5 GPa
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Low film thickness behavior curves for the cases considered over the meshing cycle

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