Friction experiments on lubricated concentrated contracts were performed to study; (a) the transitions between the different lubrication modes when operating in the lubricants liquid-state regime and (b) the frictional behavior of these contacts, under conditions of full-film lubrication, taking into account the lubricants liquid-state and solid-state behavior. On the basis of these results a flow diagram is presented for lubricated concentrated contacts, from which the lubrication mode as well as the frictional behavior can be obtained as a function of the operational conditions, under which these contacts are functioning.
Issue Section:
Research Papers
1.
Alsaad
M.
Bair
S.
Sanborn
D. M.
Winer
W. O.
1978
, “Glass Transitions in Lubricants: Its Relation to Elastohydrodynamic Lubrication (EHL)
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 100
, pp. 404
–417
.2.
Bair
S.
Winer
W. O.
1982
, “Regimes of Traction in Concentrated Contact Lubrication
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 104
, pp. 382
–391
.3.
Evans
C. R.
Johnson
K. L.
1986
, “Regimes of Traction Elasto-hydrodynamic Lubrication
,” Proc. Instn. Mech. Engrs.
, Vol. 200
, C5
, p. 313
313
.4.
Greenwood
J. A.
1984
, “A Unified Theory of Surface Roughness
,” Proc. Roy. Soc. of London
, Vol. A393
, pp. 133
–157
.5.
Greenwood
J. A.
Kauzlarich
J. J.
1973
, “Inlet Shear Heating in Elastohydrodynamic Lubrication
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 95
, pp. 417
–426
.6.
Hamrock
B. J.
Dowson
D.
1977
, “Isothermal EHL of Point Contacts, Part III: Fully Flooded Results
,” ASME JOURNAL OF LUBRICATION TECHNOLOGY
, Vol. 99
, pp. 264
–276
.7.
Johnson
K. L.
Tevaarwerk
J. L.
1977
, “Shear Behavior of EHD Oil Films
,” Proc. Roy. Soc. of London
, Vol. A356
, p. 215
215
.8.
Moes, H., and Bosma, R., 1972, “Film Thickness and Traction in EHL at Point Contact,” Instn. Mech. Engrs., EHL Symposium, London, England, C38/72, pp. 149–152.
9.
Schipper, D. J., 1988, “Transitions in the Lubrication of Concentrated Contacts,” Ph.D. thesis, University of Twente, Enschede, The Netherlands.
10.
Schipper, D. J., Vroegop, P. H., and Gee, A. W. J. de, 1989, “Prediction of Lubrication Regimes of Concentrated Contacts,” 5th International Congress of Tribology EUROTRIB 89, Helsinki, Finland, Vol. 2, pp. 171–177.
11.
Schipper
D. J.
Vroegop
P. H.
Gee
A. W. J. de
Bosma
R.
1990
a, “Micro-EHL in Lubricated Concentrated Contacts
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 112
, pp. 392
–397
.12.
Schipper, D. J., Vroegop, P. H., and Gee, A. W. J., 1990b, “On the Transition Between Solid- and Liquid-state Behavior of Lubricants in Concentrated Contacts,” Proceedings of the Japan International Tribology Conference, Nagoya, Japan, Vol. 1, pp. 379–384.
13.
Smith
F. W.
1958
/1959
, “Lubricant Behavior in Concentrated Contact Systems—The Caster Oil-Steel System
,” Wear
, Vol. 2
, pp. 250
–263
.14.
Stribeck
R.
1902
, “Die Wesentlichen Eigenschaften der Gleit- und Rollenlager
,” VDI-Zeitschrift
, Vol. 46
, pp. 1341
–1348
.
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