Effect of surface spacing parameters on mixed lubrication condition

This paper investigates the effects of surface spacing parameters on mixed lubrication based on a full numerical solution proposed by Hu and Zhu. Sinusoidal wavy surfaces with identical Ra and bearing area curve (BAC) but entirely different peak count (Pc) are chosen to substitute the real textured engineering rollers surface. A set of mixed lubrication parameters such as average lubrication film thickness, ratio of contact area, ratio of contact load, and non-dimensional maximum pressure are introduced to analyze the effect of spacing parameters of surface on mixed lubrication performance. Numerical examples show that the spacing parameters have a significant effect on the contact parameters. That would be helpful for optimizing the textures, which are engineered into rollers surface for lubrication and wear performance improvement.