A low friction bearing based on liquid slip at the wall
A low friction bearing based on liquid slip at the wall
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DOI：
10.1115/1.2736704
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发表时间：
2007-07-01
影响因子：
2.5
通讯作者：
Spikes, H. A.
中科院分区：
文献类型：
--
作者：
Choo, J. H.;Glovnea, R. P.;Spikes, H. A.
近年来，许多工作人员通过实验证明，简单的牛顿液体可以在固体表面上滑动，而固体表面既光滑又令人生畏。从理论上讲，基于半湿轴承原理，这种现象可以用来显著减少润滑滑动接触中的摩擦，从而使非常低负载接触的流体动力润滑成为可能。本文描述了这一概念的实验验证。构建了一个低载荷轴承，并研究了在大范围滑动速度下表面粗糙度和表面润湿推进对摩擦的影响。结果表明，液体滑移可以有效地降低全流体、氢动力条件下的摩擦。
In recent years it has been shown experimentally by a number of workers that simple, Newtonian liquids can slip against solid surfaces when the latter are both very smooth and 1yophobic. It has also been shown theoretically how, based on a half- wetted bearing principle, this phenomenon may be used to significantly reduce friction in lubricated sliding contacts and thus make possible the hydrodynamic lubrication of very low, load contacts. This paper describes the experimental validation of this concept. A low load bearing is constructed and the influence of surface roughness and the wetting propel-ties of the surfaces on friction are investigated over a wide range of sliding speeds. It is shown that liquid slip can be used to considerably reduce friction in fullfilin, hydrodIN namic conditions.