Effects of surface texturing on ring/liner friction under starved lubrication

Abstract Well-designed surface texturing could reduce the ring/liner friction. However, so far most researchers have focused on the aspect of texturing under fully flooded lubrication. In this study, the performances of textures under starved lubrication are investigated. Specially for the textured ring/liner system, the flow conservation equations at the inlet region are built. In this way, the effect of the oil trapped in the texture features can be modeled clearly. The simulation results show that the textured liner can obtain a steady benefit on the tribological properties. However, the positive influence of the textured ring may remain unsteady under starved lubrication conditions.