The characteristics of the infinitely wide tilting pad bearings operating under thermal elastohydrodynamic lubrication (TEHL) condition were investigated theoretically. The power-law rheological model was chosen to describe the non-Newtonian flow of the lubricant. An iterative procedure was developed to determine the shear stresses as well as the equivalent viscosity within the oil film. The analysis considers, simultaneously or individually, the following affecting factors: generation and transfer of heat, elastic and thermo-elastic deformations of bearing components due to pressure and temperature, and the inlet pressure build-up. The results were presented and discussed in terms of the applicable non-dimensional parameters.
Issue Section:
Research Papers
1.
Abdel-Latif
L. A.
1988
, “Analysis of Heavily Loaded Tilted Pads Thrust Bearings with Large Dimensions under TEHD Conditions
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 110
, pp. 467
–476
.2.
Buckholz
R. H.
1986
, “Effects of Power-Law Non-Newtonian Lubricants on Load Capacity and Friction for Plane Slider Bearings
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 108
, pp. 86
–91
.3.
Castelli
v.
Malanoski
S. B.
1969
, “Method for Solution of Lubrication Problems with Temperature and Elastic Effects: Application to Sector, Tilting Pad Bearings
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 91
, pp. 634
–640
.4.
Constantinescu
V. N.
Galetuse
S.
Kennedy
F.
1975
, “On the Comparison Between Lubrication Theory, Including Turbulence and Inertia Forces, and Some Existing Experimental Data
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 97
, pp. 439
–449
.5.
Elkouh
A. F.
Yang
Der-Fa
1991
, “Flow of a Power-Law Fluid in a Rayleigh Step
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 113
, pp. 428
–433
.6.
Flumerfelt
R. W.
Pierick
M. W.
Cooper
S. L.
Bird
R. B.
1969
, “Generalized Plane Couette Flow of a Non-Newtonian Fluid
,” Ind. Eng. Chem. Fund.
, Vol. 8
, pp. 354
–357
.7.
Hahn
E. J.
Kettleborough
C. F.
1967
, “Solution for the Pressure and Temperature in an Infinite Slider Bearing of Arbitrary Profile
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 89
, pp. 445
–452
.8.
Kim
K. W.
Rodkiewicz
C. M.
1991
, “On the Thermal Effects in the Design of Tilting-Pad Bearings Subjected to Inlet Pressure Build-Up
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 113
, pp. 526
–532
.9.
Najji
B.
Bou-Said
B.
Berthe
D.
1989
, “New Formulation for Lubrication with Non-Newtonian Fluids
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 111
, pp. 29
–34
.10.
Pan
C. H. T.
1974
, “Calculation of Pressure, Shear and Flow in Lubricating Films for High Speed Bearings
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 96
, pp. 80
–94
.11.
Prasad
D.
Singh
P.
Sinha
P.
1988
, “Nonuniform Temperature in Non-Newtonian Compressible Fluid Film Lubrication of Rollers
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 110
, pp. 653
–658
.12.
Rodkiewicz
C. M.
Hou
K.
1992
, “On the TEHL Theory. Part I: Dimensionless Problem Formulation
,” Tribology Transactions
, Vol. 35
, 2
, pp. 253
–260
.13.
Rodkiewicz
C. M.
Kim
K. W.
Kennedy
J. S.
1990
, “On the Significance of the Inlet Pressure Build-Up in the Design of Tilting-Pad Bearings
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 112
, pp. 17
–22
.14.
Sternlicht
B.
Carter
O. K.
Arwas
E. B.
1961
, “Adiabatic Analysis of Elastic, Centrally Pivoted, Thrust Bearing Pads
,” ASME Journal of Applied Mechanics
, Vol. 28
, pp. 179
–187
.15.
Timoshenko, S. T., and Goodier, J. N., 1960, Theory of Elasticity, 3rd Edition, McGraw-Hill, London.
16.
Wang
J.
Jin
G.
1989
, “The Optimum Design of the Rayleigh Slider Bearing with a Power Law Fluid
,” Wear
, Vol. 129
, pp. 1
–11
.17.
Yang
P.
Wen
S.
1990
, “A Generalized Reynolds Equation for Non-Newtonian Thermal Elastohydrodynamic Lubrication
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 112
, pp. 631
–636
.
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