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	Film-forming Characteristics of Grease in Point Contact under Swaying Motions
	Li, Gang ; Zhang, Chenhui ; Luo, Jianbin ; Liu, Shuhai ; Xie, Guoxin ; Lu, Xinchun
	2010-10-12 ; 2010-10-12
关键词	Film thickness Grease lubricant Non-steady state Swaying motions EHL LUBRICATION BEHAVIOR THICKNESS BALL Engineering, Chemical Engineering, Mechanical
中文摘要	The technique of relative optical interference intensity (ROII) and simple numerical calculations were used to investigate the lubricating behavior of grease lubricant films in the rolling direction under swaying motions (acceleration/deceleration). Experimental results indicate that at a same entrainment velocity of the inlet, the central film thickness under deceleration is larger than that under acceleration. The minimum central film thickness in one swaying cycle does not occur at the moment of zero entrainment, but at the initial period of acceleration. At the moment of zero entrainment, the central film is thicker than its peripheries, and the value of the central film thickness increases with increases in the changing rate of the entrainment velocity. It is thought that the transient behaviors of the grease lubricant film deviate from those in steady state conditions. The profiles of the transient film thickness and the approximate thicknesses of elastohydrodynamic contact in the rolling direction calculated by using a simple numerical method are supported by the experimental results. The numerical method can also be used to explain the behavior of the grease lubricating film under non-steady state conditions.
语种	英语 ; 英语
出版者	SPRINGER/PLENUM PUBLISHERS ; NEW YORK ; 233 SPRING ST, NEW YORK, NY 10013 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80196]
专题	清华大学
推荐引用方式 GB/T 7714	Li, Gang,Zhang, Chenhui,Luo, Jianbin,et al. Film-forming Characteristics of Grease in Point Contact under Swaying Motions[J],2010, 2010.
APA	Li, Gang,Zhang, Chenhui,Luo, Jianbin,Liu, Shuhai,Xie, Guoxin,&Lu, Xinchun.(2010).Film-forming Characteristics of Grease in Point Contact under Swaying Motions..
MLA	Li, Gang,et al."Film-forming Characteristics of Grease in Point Contact under Swaying Motions".(2010).

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