流体の抵抗法則に基づく非ニュートン乱流潤滑理論 : 一次元潤滑膜流れに対する定式化

抄録

This paper describes a new theoretical approach to formulate the non-Newtonian turbulent lubrication theory based on the friction law of fluid. Combining the concept of equivalent pressure flow and resistance formula for pressure flow in the lubrication films, the one-dimensional generalized turbulent lubrication equation considering the non-Newtonian effect of lubrication fluid is derived, in which the equation for non-Newtonian turbulence coefficient is greatly simplified under the assumption of strong shear flow. The non-Newtonian turbulent lubrication equation obtained is applied to the inclined long slider bearing, and the bearing performance such as pressure distribution, load capacity and friction force is analyzed. From the results, the effect of non-Newtonian characteristics on the turbulent lubrication behaviour of long slider bearing is clarified.