Simulation Based Study of the System Piston–Ring–Cylinder of a Marine Two-Stroke Engine

A comprehensive model of the system piston–ring–cylinder (PRC) of a marine two-stroke engine is presented. Among submodels developed by the author concerning gas flow through the labyrinth seal of piston rings, oil flow, ring twist, and axial ring motion in piston grooves, the model includes submodels of mixed lubrication formulated by Patir, Cheng and Greenwood, Tripp. The main parts of the developed model and software have been experimentally verified by the author during a research period at a marine engine design center. A relatively good qualitative and quantitative compatibility between the experimental measurements and calculated results has been achieved.