Experimental study of the effect of surface groove micro‐texturing on lubrication characteristics

2020 ◽  
Vol 15 (7) ◽  
pp. 446-450
Author(s):  
Huichao Gao ◽  
Xinyuan Chen
Keyword(s):  
Experimental Study ◽  
Surface Groove ◽  
Lubrication Characteristics ◽  
Effect Of Surface

Effect of surface “groove” structure of carbon nanotube bundles on the formation of nanohybrid shish kebab

2012 ◽  
Vol 27 (21) ◽  
pp. 2812-2818 ◽  
Author(s):  
Nanying Ning ◽  
Wei Zhang ◽  
Jiajie Yan ◽  
Fan Xu ◽  
Changyu Tang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Nanotube Bundles ◽  
Groove Structure ◽  
Surface Groove ◽  
Image Position ◽  
Effect Of Surface

Abstract

A Parametric Study on Fatigue Life for Mixed Elastohydrodynamic Lubrication Point Contacts

2013 ◽  
Vol 135 (4) ◽  
Author(s):  
Xiao-Liang Yan ◽  
Xiao-Li Wang ◽  
Yu-Yan Zhang
Keyword(s):  
Shear Stress ◽  
Fatigue Life ◽  
Three Dimensional ◽  
Elastohydrodynamic Lubrication ◽  
Point Contacts ◽  
Newtonian Flow ◽  
Lubrication Regimes ◽  
Close Relationship ◽  
Lubrication Characteristics ◽  
Effect Of Surface

The lubrication characteristics and fatigue life are numerically analyzed under full film and mixed lubrication regimes, in which the three-dimensional sinusoidal surfaces with changeable wavelengths in x and y directions are used, the geometry changes of the contact areas are described by the various ellipticity, and the non-Newtonian flow of lubricant is described by the sinh-law rheology model. The results show that the influences of characteristic shear stress, wavelength ratio, and ellipticity on lubrication characteristics and fatigue life are remarkable. The effect of surface topography on lubrication characteristics has a close relationship with speed. Increasing the ellipticity and decreasing wavelength ratio and characteristic shear stress can prolong the fatigue life.

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