Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 1997.10a
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- Pages.173-182
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- 1997
Thin Film Elastohydrodynamcic Lubrication of Nanometer Scale
나노 미터 크기 유막에서의 탄성유체윤활
Abstract
In many practical lubricated contacts such as a rough concentrated contact on the sliding of nominally flat surfaces, the fluid may be of molecular (nanometer) scale owing to the asperity interactions on the surfaces. Under this condition, there is insufficient lubricant on the concentrated contact spot to maintain a realistic continuum. Rheological behavior for this kind of concentrated contact was studied to know whether the application of viscous fluid model is appropriate. The interaction of two rough surfaces is simplified as perfectly flat-rough surfaces contact under certain conditions by "composite topography" and for a nanometer scale fluid film, three kinds of rheological fluid behavior are analyzed in elastohydrodynamic asperity point contact.t contact.
Keywords
- compositie topography;
- micro EHL;
- non newtonian fluid;
- surface force;
- solid like layer;
- nano tribology;
- asperity;
- solvation force