A new numerical analysis for piston skirt-liner system lubrication considering the effects of connecting rod inertia

► A new model is built to analyze the lubrication performance of piston skirt. ► The connecting rod inertia dramatically changes the transverse force on the piston. ► The connecting rod inertia exerts great influence on secondary motion of piston. ► Oil film distribution, pressure and friction are affected by connecting rod inertia.