Combined effects of couple stresses and surface roughness on the lubrication of short journal bearings

被引：36

作者：

Hsu, CH ^{[1
]}

Lin, AR ^{[1
]}

Chiang, HL ^{[1
]}

机构：

[1] Nanya Inst Technol, Dept Mech Engn, Chungli, Taiwan

来源：

INDUSTRIAL LUBRICATION AND TRIBOLOGY | 2003年 / 55卷 / 05期

关键词：

surface texture; stress (materials); lubrication; engine components;

D O I：

10.1108/00368790310488896

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

According to the Stokes microcontinuum theorem and Christensen's stochastic model, the main objective of this paper is to theoretically predict the combined influences of couple stresses and surface roughness on the lubrication performance of journal-bearing systems. To take account of the presence of both the surface roughness of bearings and the couple stress effect due to the lubricant containing the polar suspensions, the generalized stochastic non-Newtonian Reynolds-type equation is derived. Compared to the Newtonian-lubricant smooth-bearing case, the couple stress effects and the longitudinal roughness improve the load carrying capacity, and thus decrease the attitude angle and friction parameter, while the effect of transverse roughness is opposite to that of the longitudinal one in the journal-bearing system.

引用

页码：233 / 243

页数：11

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