Lubrication analysis of the piston ring of a two-stroke marine diesel engine considering thermal effects

Thermal deformation of the cylinder liner (TDCL) and the temperature–viscosity effect (TVE)of the lubricating oil are two common thermal effects which impact the lubrication properties of the piston-ring–liner tribological pair. In this study, the influence of these two thermal effects in a low-speed two-stroke diesel engine on piston ring lubrication performance are discussed in detail. For the TDCL, a steady-state heat-transfer model based on...