A full numerical solution for the thermal EHL problem in circular contact formed by steel-glass conjunctions with slide-roll ratios larger than 2 has been carried out. An anomalous film profile, which is similar to that reported by Kaneta et al. (1996), has been obtained. The numerical results by the authors, involving three basic kinds of film profiles, the kinematic conditions for the formation of dimples, and the variations of dimples and traction behavior with operating conditions, have been carefully compared with the experiments by Kaneta et al., and provided a sound theoretical evidence of the dimple phenomena under steady-state conditions. The present study indicates that the temperature-viscosity-wedge effect seems to be an essential mechanism for the dimple phenomena.

Issue Section:
Technical Papers
Keywords:
lubrication, glass, steel, mechanical contact, sliding friction, rolling friction, tribology
Topics:
Glass, Lubricants, Pressure, Steel, Temperature, Viscosity, Film thickness, Disks, Wedges, Elastohydrodynamic lubrication, Kinematics, Steady state, Traction
1.
Gohar
,
R.
, and
Cameron
,
A.
,
1967
, “
The Mapping of Elastohydrodynamic Contacts
,”
ASLE Trans.
,
10
, pp.
215
–
225
.
2.
Ranger
,
A. P.
,
Ettles
,
C. M. M.
, and
Cameron
,
A.
,
1975
, “
The Solution of the Point Contact Elastohydrodynamic Problem
,”
Proc. R. Soc. London, Ser. A
,
346
, pp.
227
–
244
.
3.
Hamrock
,
B. J.
, and
Dowson
,
D.
,
1977
, “
Isothermal Elastohydrodynamic Lubrication of Point Contact: Part III—Full Flooded Results
,”
ASME J. Lubr. Technol.
,
99
, pp.
264
–
276
.
4.
Venner, C. H., 1991, “Multilevel Solution of the EHL Line and Point Contact Problems,” Ph.D. thesis, Twente University, Enschede, Netherland.
5.
Zhu
,
D.
, and
Wen
,
S.
,
1984
, “
A Full Numerical Solution for the Thermal Elastohydrodynamic Problem in Elliptical Contacts
,”
ASME J. Tribol.
,
106
, pp.
246
–
254
.
6.
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
.
7.
Kim
,
K. H.
, and
Sadeghi
,
F.
,
1991
, “
Non-Newtonian Elastohydrodynamic Lubrication of Point Contact
,”
ASME J. Tribol.
,
113
, pp.
703
–
711
.
8.
Lee
,
R. T.
,
Hsu
,
C. H.
, and
Kuo
,
W. F.
,
1995
, “
Multilevel Solution for Thermal Elastohydrodynamic Lubrication of Rolling/Sliding Circular Contacts
,”
Tribol. Int.
,
28
, No.
8
, pp.
541
–
552
.
9.
Chiu
,
Y. P.
, and
Sibley
,
L. B.
,
1972
, “
Contact Shape and Non-Newtonian Effects in Elastohydrodynamic Point Contacts
,”
ASLE Lubr. Eng.
,
28
, pp.
48
–
60
.
10.
Kaneta
,
M.
,
Nishikawa
,
H.
,
Kanada
,
T.
, and
Matsuda
,
K.
,
1996
, “
Abnormal Phenomena Appearing in EHL Contacts
,”
ASME J. Tribol.
,
118
, pp.
886
–
892
.
11.
Kaneta
,
M.
,
Nishikawa
,
H.
,
Kameishi
,
K.
,
Sakai
,
T.
, and
Ohno
,
N.
,
1992
, “
Effects of Elastic Moduli of Contact Surfaces in Elastohydrodynamic Lubrication
,”
ASME J. Tribol.
,
114
, pp.
75
–
80
.
12.
Cermark
,
J.
,
1998
, “
Discussion (Abnormal Phenomena Appearing in EHL Contacts)
,”
ASME J. Tribol.
,
120
, pp.
143
–
144
.
13.
Ehret
,
P.
,
Dowson
,
D.
, and
Taylor
,
M.
,
1998
, “
On the Lubricant Transport Conditions in Elastohydrodynamic Conjunctions
,”
Proc. R. Soc. London, Ser. A
,
454
, pp.
763
–
787
.
14.
Kudish, I. I., 1999, Analysis of Abnormal Phenomena in EHL Contacts, in The Advancing Frontier of Engineering Tribology, Proceedings of the 1999 STLE/ASME, H. S. Cheng Tribology Surveillance, Orlando, FL, pp. 188–196.
15.
Yang
,
P.
, and
Chang
,
Q.
,
2000
, “
Analysis of Thermoelastohydrodynamic Lubrication of Sliding Surfaces with Zero Entrainment Velocity
,”
Tribology
,
20
, pp.
207
–
210
(in Chinese).
16.
Dyson, A., and Wilson, A. R., 1968–1969, “Film Thickness in Elastohydrodynamic Lubrication at High Slide/Roll Ratios,” Proc. Instn. Mech. Engrs., London, UK, 183, No. 3P, pp. 81–97.
17.
Cameron
,
A.
,
1958
, “
The Viscosity Wedge
,”
ASLE Trans.
,
1
, pp.
248
–
253
.
18.
Yang
,
P.
, and
Wen
,
S.
,
1990
, “
A Generalized Reynolds Equation for Non-Newtonian Thermal Elastohydrodynamic Lubrication
,”
ASME J. Tribol.
,
112
, pp.
631
–
636
.
19.
Hsiao
,
H. S.
, and
Hamrock
,
B. J.
,
1992
, “
A Complete Solution for Thermal-Elastohydrodynamic Lubrication of Line Contacts Using Circular Non-Newtonian Fluid Model
,”
ASME J. Tribol.
,
114
, pp.
540
–
552
.
20.
Yang
,
P.
, and
Rodkiewicz
,
C. M.
,
1992
, “
On the Numerical Analysis to the Thermal Elastohydrodynamic Lubrication of a Tilting Pad Inclusive of Side Leakage
,”
STLE Tribol. Trans.
,
40
, pp.
259
–
266
.
21.
Guo
,
F.
, and
Yang
,
P.
,
1999
, “
Influence of a Ring Flat Zone in the Point Contact Surface on Thermal Elastohydrodynamic Lubrication
,”
Tribol. Int.
,
32
, No.
3
, pp.
167
–
175
.
Copyright © 2001
 by ASME
You do not currently have access to this content.