Abstract:Tribological properties of textured surface were studied based on the mixed lubrication model taking into account the effect of surface roughness and asperity contact.Stribeck curves were obtained and the influences of load,lubricant viscosity,roughness on friction performance were analyzed by numerical simulation.The effects of slender ratio and inclination angle were also considered in the simulation.Results show that when load is small or lubricant viscosity is large,friction coefficient in mixed lubrication and critical rotation speed for the transition from mixed lubrication to hydrodynamic lubrication are low,and nominal clearance is large.When surface roughness is large,friction coefficient,nominal clearance and critical rotation speed are large.When inclination angle is small or slender ratio is large,friction coefficient is low,and nominal clearance is large.Critical rotation speed is observed to decrease when inclination angle is decreased.