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TECHNICAL PAPERS

Thermal Effects in Thrust Washer Lubrication

[+] Author and Article Information
To Him Yu, Farshid Sadeghi

Purdue University, School of Mechanical Engineering, West Lafayette, IN 47907e-mail:sadeghi@ecn.purdue.edu

J. Tribol 124(1), 166-177 (Sep 27, 2001) (12 pages) doi:10.1115/1.1399053 History: Received May 15, 2001; Revised September 27, 2001
Copyright © 2002 by ASME
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References

Yu,  T., and Sadeghi,  F., 2000, “Groove Effects on Thrust Washer Lubrication,” ASME J. Tribol., 123, No. 2, pp. 295–304.
Pinkus, O. 1990, Thermal Aspects of Fluid Film Tribology, ASME Press, New York.
Khonsari,  M. M., 1987, “A Review of Thermal Effects in Hydrodynamic Bearings: Part I—Slider and Thrust Bearings.” ASLE Trans., 30, No. 1, pp. 19–25.
Khonsari,  M. M., 1987, “A Review of Thermal Effects in Hydrodynamic Bearings: Part II—Journal Bearings,” ASLE Trans., 30, No. 1, pp. 26–33.
Jakobsson,  B., and Floberg,  L., 1957, “The Finite Journal Bearings Considering Vaporization,” Trans. Chalmers University of Technology, Gotenburg, Sweden, 190, pp. 1–116.
Olsson,  K. O., 1965, “Cavitation in Dynamically Loaded Bearings,” Trans. of Chalmers University of Technology, 308, Gotenburg, Sweden, pp. 1–60.
Brewe,  D. E., 1986, “Theoretical Modeling of the Vapor Cavitation in Dynamically Loaded Journal Bearings,” ASME J. Tribol., 108, pp. 628–638.
Ott,  H. H., and Paradissiadis,  G., 1988, “Thermohydrodynamic Analysis of Journal Bearings Considering Cavitation and Reverse Flow,” ASME J. Tribol., 110, pp. 439–447.
Han,  T., and Paranjpe,  R. S., 1990, “A Finite Volume Analysis of the Thermohydrodynamic Performance of Finite Journal Bearings,” ASME J. Tribol., 112, pp. 557–566.
Elrod,  H. G., 1981, “A Cavitation Algorithm,” ASME J. Lubr. Technol., 103, pp. 350–354.
Paranjpe,  R. S., and Han,  T., 1995, “A Transient Thermodynamic Analysis Including Mass Conserving Cavitation for Dynamically Loaded Journal Bearings,” ASME J. Tribol., 117, pp. 369–378.
Glavatskikh, S. B., 1999, “Transient Thermal Effects in a Pivoted Pad Thrust Bearing,” 26th Leeds-Lyon Symposium on Tribology.
Monmousseau,  P., Fillon,  M., and Frene,  J., 1997, “Transient Thermoelastohydrodynamic Study of Tilting-Pad Journal Bearings—Comparison Between Experimental Data and Theoretical Results,” ASME J. Tribol., 119, No. 3, pp. 401–407.
Kucinschi,  B., Fillon,  M., Pascovici,  M., and Frẽne,  J., 2000, “A Transient Thermoelastohydrodynamic Study of Steadily Loaded Plain Journal Bearings using Finite Element Method Analysis,” ASME J. Tribol., 122, No. 1, pp. 219–226.
Day,  K., and Salant,  R. F., 1999, “Thermal Elastohydrodynamic Model of a Radial Lip Seal: Part 1—Analysis and Base Results,” ASME J. Tribol., 121, pp. 1–10.
Vijayaraghavan,  D., 1995, “An Efficient Numerical Procedure for Thermohydrodynamic Analysis of Cavitating Bearings,” ASME J. Tribol., 108, pp. 555–563.
Tucker,  P. G., and Keogh,  P. S., 1995, “A Generalized Computational Fluid Dynamics Approach for Journal Bearing Performance Prediction,” Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol., 209, pp. 99–108.
Hoffman, J. D., 1992, Numerical Methods for Engineers and Scientists, McGraw-Hill, Inc., New York.
Floberg,  L., 1961, “Boundary Conditions of Cavitation Regions in Journal Bearings,” ASLE Trans., 4, pp. 282–286.
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Kim,  K.-H., and Sadeghi,  F., 1993, “Three-Dimensional Temperature Distribution in EHD Lubrication: Part II—Point Contact and Numerical Formulation,” ASME J. Tribol., 115, pp. 36–45.

Figures

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Thrust washer librication system
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Thrust washer geometry schematic
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Schematic of various groove profiles
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Schematic diagram of a cavitating thrust washer
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Top view of the cavitating zone
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The flow chart of steady-state solution procedure
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The flow chart of transient solution procedure
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Comparison of pressure distribution at mid-section. (γ=5000.0,R̄=0.85,Δ=1.0,λ=600.0,Cn=2000.0,NG=15,Re*=0.00369, and β=0.0 deg)
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Temperature profile at the stationary plastic pad surface. (γ=5000.0, R̄=0.85, Δ=0.5, λ=400.0, Cn=2000.0,NG=10, Re* =0.00369, and β=0.0 deg)
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Temperature profile of the lubricant at mid-film section. (γ=5000.0, R=0.85, Δ=0.5, λ=400.0, Cn=2000.0,NG=10, Re* =0.00369 and β=0.0 deg)
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Temperature profile of the runner-fluid interface. (γ=5000.0, R̄=0.85, Δ=0.5, λ=400.0, Cn=2000.0,NG=10, Re* =0.00369, and β=0.0 deg)
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Variation of film thickness as a function of time and temperature. (NG=13,Gw=19.5 mm,Gd=0.0325 mm,t0=0.022 sec,hinitial=0.325 mm, and Fz=600.0 N)
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Variation of frictional torque and film temperature as a function of time. (NG=13,Gw=19.5 mm,Gd=0.0325 mm,t0=0.022 sec,hinitial=0.325 mm, and Fz=600.0 N)
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Effects of the groove width on load carrying capacity. (γ=5000.0, R=0.85, λ=400.0, NG=15, Re* =0.00369, Cn=2000.0)
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Effects of the groove depth on side flow rates. (γ=5000.0, R=0.85, λ=400.0, NG=15, Re* =0.00369, Cn=2000.0)
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Effects of groove depth on frictional torque. (γ=5000.0, R=0.85, λ=400.0, NG=15, Re* =0.00369, Cn=2000.0)
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Effects of groove number on load carrying capacity. (γ=5000.0, R=0.85, λ=600.0, Δ=1.0, Cn=2000.0, Re* =0.00369)
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Effects of groove number on side flow rates. (γ=5000.0, R=0.85, λ=600.0, Δ=1.0, Cn=2000.0, Re* =0.00369)
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Effects of groove number on frictional torque. (γ=5000.0, R=0.85, λ=600.0, Δ=1.0, Cn=2000.0, Re* =0.00369)
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Effects of γ on the load carrying capacity. (NG=5,R=0.85, λ=600.0, Δ=1.0, Cn=2000.0)
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Effects of γ on the side flow rates. (NG=5,R=0.85, λ=600.0, Δ=1.0, Cn=2000.0)
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Effects of γ on frictional torque. (NG=5,R=0.85, λ=600.0, Δ=1.0, Cn=2000.0)
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Non-dimensionlized physical domain

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