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TECHNICAL PAPERS

Debris Effects on EHL Contact

[+] Author and Article Information
Young S. Kang, Farshid Sadeghi

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288

Xiaolan Ai

The Timken Company, Canton, OH 44706

J. Tribol 122(4), 711-720 (Jun 16, 2000) (10 pages) doi:10.1115/1.1314606 History: Received April 12, 1999; Revised June 16, 2000
Copyright © 2000 by ASME
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References

Figures

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Schematic of pressure (forces) applied to a debris
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Debris shape (ellipsoidal debris)
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(a) Pressure profile; (b) film thickness profile; (c) contour plot of film thickness; (d) film thickness profile along the center line of contact (W*=2.0e−6,U*=1.0e−10,G=3500,S=0.0,Xo=−2.5 for an ellipsoidal shaped debris)
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Debris size which can enter an EHL contact
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Schematic of lubricated contact with a debris
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(a) Pressure profile; (b) film thickness profile; (c) contour plot of film thickness; (d) film thickness profile along the center line of the contact (W*=2.0e−6,U*=1.0e−10,G=3500,S=0.0,Xo=−1.3 for an ellipsoidal shaped debris)
Grahic Jump Location
(a) Pressure profile; (b) film thickness profile; (c) contour plot of film thickness; (d) film thickness profile along the center line of the contact (W*=2.0e−6,U*=1.0e−10,G=3500,S=0.0,Xo=−1.3 for an ellipsoidal shaped debris)
Grahic Jump Location
(a) Pressure profile; (b) film thickness profile; (c) contour plot of film thickness; (d) film thickness profile along the center line of the contact (W*=2.0e−6,U*=1.0e−10,G=3500,S=0.0,Xo=0.0 for an ellipsoidal shaped debris)
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Velocity profile (W*=1.9×10−5,U*=5.3×10−11,G=3500,S=0.0,hd=20×10−6 m)
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Pressure profile (W*=1.9×10−5,U*=5.3×10−11,G=3500)
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Net force applied to the debris

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