VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University35510.18287/2541-7533-2006-0-2-1(10)-339-343UnknownInteraction between a piston ring and a deformed cylinder liner of the internal combustion engine11sadohina@ssau.ru1807200652-133934321052014Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>The pressure distribution of piston rings against the liner wall is significant for their performance in the running engine. Hence, a program has been developed for numerical calculation of the pressure distribution and the gaps between a piston ring and a cylinder liner. The model takes into account: the shape of the cylinder liner and the piston ring, both the hydrodynamic and asperity interaction and the oil starvation.</p>