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TECHNICAL PAPERS

A Finite Element Analysis of Surface Pocket Effects in Hertzian Line Contact

[+] Author and Article Information
Jiaxin Zhao, Farshid Sadeghi

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

Harvey M. Nixon

Manager—Mechanical/Tribochemical Sciences, The Timken Company, Canton, OH 44706

J. Tribol 122(1), 47-54 (Jul 21, 1999) (8 pages) doi:10.1115/1.555328 History: Received January 04, 1999; Revised July 21, 1999
Copyright © 2000 by ASME
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References

Bhushan,  B., 1998, “Contact Mechanics of Rough Surfaces in Tribology: Multiple Asperity,” Tribol. Lett., 4, pp. 1–35.
Ioannides,  E., and Kuijpers,  J. C., 1986, “Elastic Stresses Below Asperities in Lubricated Contacts,” ASME J. Tribol., 108, pp. 394–402.
Bailey,  D. M., and Sayles,  R. S., 1991, “Effects of Roughness and Sliding Friction on Contact Stresses,” ASME J. Tribol., 113, pp. 729–738.
Komvopoulos,  K., and Choi,  D. H., 1992, “Elastic Finite Element Analysis of Multi-Asperity Contacts,” ASME J. Tribol., 14, pp. 823–831.
Wedeven,  L. D., 1978, “Influence of Debris Dent on EHD Lubrication,” ASLE Transactions, 21, pp. 45–52.
de Mul,  J. M., Vree,  J. M., and Kuypers,  J. C., 1987, “The Influence of Certain Raceway Dent Geometries (3-D) on Contact Stresses and Rating Failure Life of Rolling Bearings,” ASME J. Tribol., 109, pp. 452–461.
Gupta,  V., Hahn,  G. T., Bastias,  P. C., and Rubin,  C. A., 1995, “Contribution of Surface Irregularities to Rolling Contact Plasticity in Bearing Steels,” ASME J. Tribol., 117, pp. 660–666.
Xu,  G., Nickel,  D. A., Sadeghi,  F., and Ai,  X., 1996, “Elastoplastohydrodynamic Lubrication with Dent Effects,” J. Eng. Tribol., 210, pp. 233–245.
Dowson, D., and Higginson, G. R., 1966, Elasto-hydrodynamic Lubrication, The Fundamentals of Roller Gear Lubrication, Pergamon Press, Oxford, UK.
Jacobson,  B. O., and Vinet,  P., 1987, “A model for the Influence of Pressure on the Bulk Modulus and the Influence of Temperature on the Solidification Pressure for Liquid Lubricants,” ASME J. Tribol., 109, pp. 709–714.

Figures

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Comparison of contact pressure
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FEA grid with surface pocket
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Calculation of pocket volume
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Empty pocket volume change
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Contact pressure with empty pocket
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Subsurface Von Mises stress with empty pocket
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Lubricant pressure-volume model
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Diagram of pressure/force in the model
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Iteration process to get lubricant pressure
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Effects of pocket location on pressure profile on half space with DH lubricant model and elastic material model
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Subsurface Von Mises stress for central pocket with DH lubricant model and elastic material model
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Pressure profile on half space with JV lubricant model and elastic material model
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Subsurface Von Mises stress for central pocket with JV lubricant model and elastic material model
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Pressure profile on half space with JV lubricant model and ELKP material model
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Subsurface Von Mises stress for central pocket with JV lubricant model and ELKP material model
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Subsurface Von Mises stress for pocket half span of 144 μm
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Effects of rotation of cylinder on pressure profile
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Effects of pocket half span on pressure profile on half space
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Subsurface plastic strain for central pocket with JV lubricant model and ELKP material model
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Subsurface Von Mises stress for empty pocket with rotating cylinder
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Subsurface Von Mises stress with two lubricant filled pockets
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Subsurface Von Mises stress for lubricant filled pocket with rotating cylinder
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Pressure profile with two pockets
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Subsurface Von Mises stress with two empty pockets

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