This paper presents a theoretical model for the behavior of elastohydrodynamic films subjected to transient speed conditions, based on Grubin’s analytical solution for elastohydrodynamic lubrication. This model is applied to predict film thickness in high deceleration conditions. The model’s predictions are compared with the experimental results presented in an accompanying paper entitled “Elastohydrodynamic Film Collapse During Rapid Deceleration. Part I: Experimental Results.”

Issue Section:
Technical Papers
Keywords:
hydrodynamics, mechanical contact, lubrication, surface topography, elasticity, tribology, viscosity, Elastohydrodynamic Lubrication, Film Thickness, Nonsteady State, Transient, Stop–Start, Grubin
Topics:
Collapse, Film thickness, Transients (Dynamics)
1.
Glovnea
,
R. P.
, and
Spikes
,
H. A.
,
2001
, “
Elastohydrodynamic film collapse during rapid deceleration. Part I: Experimental results
,”
Trans. ASME J. Tribol.
,
123
, pp.
254
–
261
.
2.
Diaconescu
,
E. N.
, and
Glovnea
,
R. P.
,
1994
, “
A new one dimensional Reynolds equation for unsteady speed regime
,”
Acta Tribol.
,
2
, pp.
89
–
96
.
3.
Glovnea
,
R. P.
,
Diaconescu
,
E. N.
, and
Flamand
,
L.
,
1995
, “
EHD film thickness under transient speed conditions
,”
Acta Tribol.
,
3
, pp.
31
–
36
.
4.
Westlake, F. J., and Cameron, A., 1972, “Interferometric study of point con-tact lubrication,” Proc. Inst. Mech. Eng. Elastohydrodynamic Lubrication Symposium, pp. 153–159.
5.
Sugimura
,
J.
,
Okumura
,
T.
,
Yamamoto
,
Y.
, and
Spikes
,
H. A.
,
1999
, “
Simple equation for elastohydrodynamic film thickness under acceleration
,”
Tribol. Int.
,
32
, pp.
117
–
123
.
6.
Hamrock, B. T., and Dowson, D. 1981, Ball Bearing Lubrication: The Elastohydrodynamics of Elliptical Contacts, Wiley, New York.
7.
Cameron, A., 1966, The Principles of Lubrication, Longmans, London.
8.
Johnson, K. L., 1985, Contact Mechanics, Cambridge University Press, Cambridge.
Copyright © 2001
 by ASME
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