Thermohydrodynamic lubrication is complicated by the multiplicity of heat transfer paths from the site of dissipation to the surroundings. This has impeded a general understanding of thermohydrodynamic phenomena. The method of lumped variables is applied to a simple slider bearing (as an example) to explore thermohydrodynamic lubrication. This approach leads to a better understanding of the interplay between the different modes of heat transfer and the influence of the associated temperature rises on performance, and how this can be captured by the use of appropriate non-dimensional measures. Such measures also allow the mapping of the problem into a set of regimes characterized by the relative importance of different heat transfer modes.

Issue Section:
Research Papers
Topics:
Lubrication, Thermohydrodynamics, Heat transfer, Energy dissipation, Slider bearings, Temperature
1.
Aggarwal, B., and Wilson, W. R. D., 1979, “Improved Thermal Reynolds’ Equations,” Proc. 6th Leeds-Lyon Symposium on Tribology, I. Mech. E., London, pp. 152–175.
2.
Bejan
 
A.
,
1989
, “
The Fundamentals of Sliding Contact Melting and Friction
,”
ASME Journal of Heat Transfer
, Vol.
111
, pp.
13
–
20
.
3.
Cheng
 
H. S.
,
1968
, “
A Refined Solution to the Thermal EHL, of Rolling and Sliding Cylinders
,”
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8
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397
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410
.
4.
Dowson
 
D.
, and
Hudson
 
J. D.
,
1964
, “
Thermohydrodynamic Analysis of the Infinite Slider Bearing
,”
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3
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34
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51
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5.
Fillon
 
M.
, and
Khonsari
 
M. M.
,
1996
, “
Thermohydrodynamic Design Charts for Tilting Pad Journal Bearings
,”
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232
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238
.
6.
Johnson
 
K. L.
,
1970
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Regimes of Elastohydrodynamic Lubrication
,”
J. Mech. Eng. Sci
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12
, pp.
9
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16
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7.
Khonsari
 
M. M.
,
1987
, “
A Review of Thermal Effects in Hydrodynamic Bearings
,”
ASLE Trans.
, Vol.
30
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19
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20
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8.
Khonsari
 
M. M.
,
Jang
 
J. Y.
and
Fillon
 
M.
,
1996
, “
On the Generalization of Thermohydrodynamic Analysis for Journal Bearings
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
118
, pp.
571
–
579
.
9.
Pinkus, O., and Wilcock, D. J., 1980, “Thermal Effects in Fluid Film Bearings,” Proc. 6th. Leeds-Lyon Symposium on Tribology, I. Mech. E., London, pp. 3–23.
10.
Pinkus, O., 1990, Thermal Aspects of Fluid Film Tribology, ASME Press, New York.
11.
Rohde
 
S. M.
, and
Oh
 
K. P. A.
,
1975
, “
Thermohydrodynamic Lubrication of a Finite Slider Bearing
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
97
, pp.
450
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460
.
12.
Wilson
 
W. R. D.
, and
Mahdavian
 
S. M.
,
1974
, “
A Thermal Reynolds’ Equation and Its Application in the Analysis of Plasto-Hydrodynamic Inlet Zones
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
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96
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572
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577
.
13.
Wilson
 
W. R. D.
,
1976
, “
Lubrication by a Melting Solid
,”
ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol.
98
, pp.
22
–
26
.
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