TY - JOUR N2 - The motion of a ring pack on a thin oil film covering a cylinder liner has been analysed. In contrast to the previous paper [8], which considered only hydrodynamic phenomena, in the present paper a mixed lubrication case is also taken into account. Equations describing the mixed lubrication problem based on the empirical mathematical model formulated in works of Patir, Cheng [5], [6] and Greenwood, Trip [2] have been combined and used in this paper. Results of numerical simulations of this phenomenon have been presented. The model of ring motion considered takes the following phenomena into account: hydrodynamic and contact forces, spring and gas forces and the local motion of each ring in piston grooves. Differences between the motion of the ring on a thick and thin oil film are analysed and discussed. L1 - http://journals.pan.pl/Content/124971/PDF/6_MECHANICAL_52_2005_2_Wolff_Numerical.pdf L2 - http://journals.pan.pl/Content/124971 PY - 2005 IS - No 2 EP - 190 KW - hydrodynamics KW - gasdynamics KW - oil consumption KW - elastic contact KW - surface roughness KW - pistonengines A1 - Wolff, Andrzej A1 - Piechna, Janusz PB - Polish Academy of Sciences, Committee on Machine Building VL - vol. 52 DA - 06.11.2022 T1 - Numerical simulation of piston ring pack operation in the case of mixed lubrication SP - 157 UR - http://journals.pan.pl/dlibra/publication/edition/124971 T2 - Archive of Mechanical Engineering ER -