The influence of the electric double layers of two friction surfaces on nanoscale lubrication is significant. Based on the previous mathematical model of electro-viscosity considering the asymmetrical electric double layers, and by using a viscosity–pressure model of water, a theoretical evaluation concerning the effect of the electric double layers on the film thickness and the pressure distribution of the elastohydrodynamic lubricating water film of the line contact is carried out. The analysis results show that the electric double layers lead to a noticeable increase in the film thickness, but the influence of the electric double layers on the pressure distribution is minimal.
JohnstonGJWayteRSpikesHA. The measurement and study of very thin lubricant films in concentrated contact. Tribol T1991; 34: 187–194.
2.
ShizhuWPingH. Principles of tribology. 3rd ed.Beijing: TsingHua University Press, 2012.
3.
ZhangBUmeharaN. Hydrodynamic lubrication theory considering electric double layer for very thin water film lubrication of ceramics. Japan Soc Mech Engrs Int J. Series C1998; 41(2): 285–290.
4.
HuangPWongPLMengYG. Influences of electric double layer on thin lubrication film thickness and pressure. Chin J Mech Eng2002; 38(8): 9–13 (in Chinese).
5.
BaiSXHuangP. Experimental and numerical study on influence of electro-viscosity of electric double layer in thin film lubrication. Chin J Mech Eng2004; 40(5): 34–38 (in Chinese).
6.
ZuoQYHuangPSuF. Theory analysis of asymmetrical electric double layer effects on thin film lubrication. Tribol Int2012; 49(0): 67–74.
7.
ZuoQYLaiTMHuangP. The effect of the electric double layer on very thin thermal elastohydrodynamic lubricating film. Tribol Lett2012; 45(3): 455–463.
8.
FranciscoAFreneJBlouinA. Multilevel solution of the elastohydrodynamic contact for the water lubricated silicon carbide 3D line contact. Tribol T2002; 45(1): 110–116.
9.
RoelandsCJA. Correlational aspects of the viscosity-temperature-pressure relationship of lubricating oils. Groningen: Druk U.R.B., 1966.
