一种基于非Newtonian流变学模型的牵引力计算公式

 采用部分弹性流体动力润滑热分析理论及Ree-Eyring流变学模型对滚滑接触状态下航空合成润滑油的牵引特性进行了较为详细的研究,获得了航空合成润滑油牵引力系数随载荷、滚动速度、润滑油粘度及滑滚比变化的规律,并将计算结果与国外相近的实验结果进行了比较。此外,本文还根据研究结果提出了一种适用于航空高速滚动轴承动力学分析的牵引力系数计算公式。

A TRACTION CALCULATING FORMULA BASED ON NON-NEWTONIAN RHEOLOGICAL MODEL

The traction characteristics of Synthetic lubricants in rolling / sliding contacts are studied in detail in the present paper by using thermal partial elastohydrodynamic lubrication theory and the Ree-Eyring rheological model which accounts for the non-Newtonian behavior of the lubricant. The variety regularities of the traction coefficient of synthetic lubricants with the load, rolling speed and lubricant viscosity are obtained and a comparison between the calculated results presented in the paper and the experimental results of Gupta et al is also shown. In addition, a working formula, which fits the traction coefficient of synthetic lubricant versus slide-roll ratio curve, has also been devised.