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标 题: Combined effects of couple stresses and surface roughness on the lubricaftion of short journal bearings
耦合应力与表面粗糙度对短轴径轴承润滑性能的综合影响
作 者: Cheng-Hsing Hsu
Jaw-Ren Lin
Hsiu-Lu Chiang
关键词: Surface texture  [表面纹理]
Stress (materials)  [ 压力(材料)]
Lubrication  [ 润滑]
Engine components  [ 发动机部件]
出版年: 2003
期刊名: Industrial Lubrication and Tribology
工业润滑与摩擦学
年卷期: 2003, vol.55, no.5
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.

根据斯托克斯微连续体定理和克里斯滕森的随机模型,本文的主要目标是理论预测耦合应力与表面粗糙度对轴瓦系统润滑性能的综合影响。为考虑轴承表面粗糙度以及含极性悬浮液的润滑油所产生的耦合应力效应,推导出广义的随机非牛顿型雷诺方程。与牛顿型润滑脂光滑轴承情况相比,耦合应力效应和纵向粗糙度可提高承载能力,从而减小倾角和摩擦系数; 而横向粗糙度在轴瓦系统中的作用则与纵向粗糙度相反。
中文内容为网络AI翻译,专业术语未必准确,仅供参考。

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