Moving textures: Simulation of a ring sliding on a textured liner

摘要: Abstract Numerical simulations of the ring/liner contact in which liner exhibits a periodic texture (pockets) are reported. The mass-conservative Elrod–Adams model is used to treat cavitation, and dynamics ring considered with linear mass that corresponds actual engine compression rings. results, computed at Stribeck number 10−3 thus hydrodynamic lubrication regime, show profile determines whether pocketing beneficial or not. For strongly non-conformal contacts detrimental, but for quasi-conformal friction reductions up 73% predicted. largest reduction was obtained textures consisting close-packed arrays circular pockets diameter comparable size contact.