Piston Skirt Mixed Lubrication Analysis Considering the Effects of Lubricant Shear-Thinning

被引：0

作者：

Ning, Lipu ^{[1
]}

Ning, Xin ^{[2
]}

Meng, Xianghui ^{[3
]}

机构：

[1] Pan Asia Technical Automotive Center Co., Ltd., Shanghai,201201, China

[2] School of Mechanical and Electrical Engineering, Henan Institute of Science and Technology, Xinxiang,Henan,453003, China

[3] School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai,200240, China

来源：

Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2018年 / 52卷 / 05期

关键词：

Lubrication - Non Newtonian flow - Pistons - Shear flow - Friction - Lubricating oils;

D O I：

10.16183/j.cnki.jsjtu.2018.05.002

中图分类号：

学科分类号：

摘要：

A mixed lubrication of the piston skirt-liner system is presented, considering the effects of lubricant shear-thinning, to investigate the friction characteristics of the piston skirt for both monograde and multigrade lubricants, and the validity of the model and the effect of the lubricating oil shear-thinning are verified by the experiment. The results show that the multistage lubricating oil has a significant shear-thinning effect, and a decrease in the lubricant viscosity is an effective way to reduce the friction loss of piston skirt, although it may increase the boundary friction, especially at the expansion stroke. The effect of shear-thinning on the piston secondary motion is not obvious, and the measured value of the experiment is in good agreement with the predicted value of the mixed lubrication model. © 2018, Shanghai Jiao Tong University Press. All right reserved.

引用

页码：511 / 517