文献类型：期刊文献

中文题名：含气率对油气润滑性能的影响

英文题名：Effects of Void Fraction on Lubricating Properties of Oil-Air Lubrication

作者：王建文[1];安琦[1]

机构：[1]华东理工大学机械与动力工程学院,承压系统安全科学教育部重点实验室,上海200237

年份：2009

卷号：35

期号：6

起止页码：932

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：滚动轴承;油气润滑;润滑机理;含气率;数值模拟

外文关键词：rolling bearings oil-air lubrication lubricating mechanism void fraction numerical（simulation）

摘要：根据弹性流体动压润滑理论,对油气润滑滚动轴承问题进行了数值模拟研究,详细探讨了润滑油中混入气体后对滚动轴承油膜形状、承载区压力、量纲一摩擦力、量纲一承载力等性能的影响。研究表明:在同等条件下,油气润滑能增加滚动轴承的油膜厚度、增大承载油膜范围、使量纲一摩擦力降低25.8%,量纲一承载力提高2%。揭示了油气润滑性能优于传统油润滑性的内在原因。
The effects of void fraction of lubricating oil on lubricating properties,such as film thickness,pressure,non-dimensional fraction force and non-dimensional bearing force,of oil-air lubrication are studied by numerical simulation method based on the theory of elastohydrodynamic lubrication.The results show that oil-air lubrication can increase the oil film thickness and expand film-pressure area,the loading capacity is improved by 2%,and the friction force is decreased by 25.8%.Compared with traditional oil lubrication under the same operating conditions,the intrinsic reasons that oil-air-lubrication has advantages over traditional oil lubrication are revealed.