Granular collision lubrication: Experimental investigation and comparison to theory

被引：16
作者：
Eikholy, Karim N. [1 ]
Khonsari, M. M. [1 ]
机构：
[1] Louisiana State Univ, Dept Engn Mech, Baton Rouge, LA 70803 USA
来源：
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME | 2007年 / 129卷 / 04期
关键词：
granular lubrication; binary collision; kinetic theory; lift; dilation; slip velocity;
D O I：
10.1115/1.2768613
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
An experimental investigation of the friction and lift characteristics of granular lubrication is presented. Experiments are carried out to demonstrate the vertical displacement (lift) observed in an annular shear cell apparatus. Results are presented for the friction coefficient as a function of the rotational speed and the applied load for several surface roughness combinations. Simulations of the kinetic theory for the granular material are performed and compared to the experimental results. The experiments provide an evidence for the formation of granular lift between two disks undergoing sliding motion.
引用
收藏
页码：923 / 932
页数：10
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