聚α-烯烃基础油PAO650弹流润滑成膜特性

doi:10.13190/j.jbupt.2014.05.002

北京邮电大学学报 ›› 2014, Vol. 37 ›› Issue (5): 6-10.doi: 10.13190/j.jbupt.2014.05.002

聚α-烯烃基础油PAO650弹流润滑成膜特性

刘剑平, 王延周, 徐兵兵, 徐志方

山东理工大学机械工程学院, 山东淄博 255049

收稿日期:2013-05-02 出版日期:2014-10-28 发布日期:2014-11-07
作者简介:刘剑平(1967- ), 女, 教授, E-mail: liujianping.liu@163.com.
基金资助:
山东省自然科学基金项目(ZR2011EEM008);淄博市科技计划项目(2010ZB01);山东理工大学博士启动基金项目(4041)

Film Forming Characteristics of PAO650 at EHL

LIU Jian-ping, WANG Yan-zhou, XU Bing-bing, XU Zhi-fang

School of Mechanical Engineering, Shandong University of Technology, Shandong Zibo 255049, China

Received:2013-05-02 Online:2014-10-28 Published:2014-11-07

摘要/Abstract

摘要：

基于修正的Carreau本构方程,推导出了考虑剪切稀化非牛顿流变特性的雷诺方程,利用新型高压流变仪对PAO650流动曲线进行了测试,得到了聚α-烯烃(PAO)650的流变参数值;通过理论和实验研究了PAO650的弹流润滑(EHL)成膜特性. 研究结果表明,基于剪切稀化弹流的理论研究结果与实测值吻合较好,剪切稀化非牛顿流变效应使PAO650发生严重油膜稀化现象,经典弹流油膜厚度公式中的卷吸速度指数需要调整,滑滚比对PAO650的成膜特性影响不大.

关键词: PAO650, 剪切稀化效应, 成膜特性, 弹流润滑

Abstract:

Based on modified Carreau constitutive equation, the Reynolds equation was deduced, which considers shear-thinning non-Newtonian property. The flow curve of poly alpha olefin (PAO)650 was measured with high-pressure rheometer. The rheological parameters were obtained by fitting the related test data. PAO650 elastohydrodynamic lubrication (EHL) film forming properties were studied. Experiment indicates that PAO650 film forming properties based on shear-thinning EHL theory very well agree with the experimental results. The shear-thinning non-Newtonian rheological effect makes PAO650 film-thinning severely. For PAO650, the entrainment rate index of classic EHL film thickness formula needs to be adjusted. The slide-roll ratio has little impact on PAO650 film-forming properties.

Key words: PAO650, shear thinning effect, film forming characteristics, elastohydrodynamic lubrication

中图分类号:

TH117.2

刘剑平, 王延周, 徐兵兵, 徐志方. 聚α-烯烃基础油PAO650弹流润滑成膜特性[J]. 北京邮电大学学报, 2014, 37(5): 6-10.

LIU Jian-ping, WANG Yan-zhou, XU Bing-bing, XU Zhi-fang. Film Forming Characteristics of PAO650 at EHL[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2014, 37(5): 6-10.

聚α-烯烃基础油PAO650弹流润滑成膜特性

Film Forming Characteristics of PAO650 at EHL

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