A comprehensive model is developed for analyzing the onset of thermoelastic instability in a wet clutch. For this purpose, appropriate governing equations are derived that take into account the porosity and deformability of the friction material. The effect of the thickness of the separator disk and that of the friction material are also included. The model is general and can be used to describe TEI in a variety of other systems such as in a mechanical seal, as a special case. A series of simulations are presented that predict the thermoelastic behavior of a wet clutch from an instability viewpoint.
Issue Section:
Technical Papers
1.
Jang
, J. Y.
, and Khonsari
, M. M.
, 1999
, “Thermal Characteristics of a Wet Clutch
,” ASME J. Tribol.
, 121
, pp. 610
–617
.2.
Burton
, R. A.
, Nerlikar
, V.
, and Kilaparti
, R.
, 1973
, “Thermoelastic Instability in a Seal-Like Configuration
,” Wear
, 24
, pp. 177
–188
.3.
Lee
, K.
, and Barber
, J. R.
, 1993
, “Frictionally Excited Thermoelastic Instability in Automotive Disk Brakes
,” ASME J. Tribol.
, 115
, pp. 607
–614
.4.
Lee
, K.
, and Barber
, J. R.
, 1993
, “The Effect of Shear Tractions on Frictionally-Excited Thermoelastic Instability
,” Wear
, 160
, pp. 237
–242
.5.
Jang
, J. Y.
, and Khonsari
, M. M.
, 1999
, “Thermoelastic Instability Including Surface Roughness Effects
,” ASME J. Tribol.
, 121
, pp. 648
–654
.6.
Patir
, N.
, and Cheng
, H. S.
, 1978
, “An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic Lubrication
,” ASME J. Lubr. Technol.
, 100
, pp. 12
–17
.7.
Patir
, N.
, and Cheng
, H. S.
, 1979
, “Application of Average Flow Model to Lubrication Between Rough Sliding Surfaces
,” ASME J. Lubr. Technol.
, 101
, pp. 220
–230
.8.
Natsumeda
, S.
, and Miyoshi
, T.
, 1994
, “Numerical Simulation of Engagement of Paper Based Wet Clutch Facing
,” ASME J. Tribol.
, 116
, pp. 232
–237
.9.
Jang
, J. Y.
, and Khonsari
, M. M.
, 2000
, “Thermoelastic Instability with Consideration of Surface Roughness and Hydrodynamic Lubrication
,” ASME J. Tribol.
, 122
, pp. 725
–732
.10.
Greenwood
, J. A.
, and Williamson
, J. B. P.
, 1966
, “Contact of Nominally Flat Surfaces
,” Proc. R. Soc. London, Ser. A
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12.
Banerjee
, B. N.
, and Burton
, R. A.
, 1976
, “An Instability for Parallel Sliding of Solid Surfaces Separated by a Viscous Liquid Film
,” J. Lubr. Technol.
, 98
, pp. 157
–166
.13.
Zagrodzki
, P.
, 1990
, “Analysis of Thermomechanical Phenomena in Multidisc Clutches and Brakes
,” Wear
, 140
, pp. 291
–308
.Copyright © 2002
by ASME
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