A study on the effect of oil pocket density on the effectiveness of boundary lubrication in the liner-ring interface

摘要

Lubricant retention during sliding of mating surfaces is one of the major problems encountered in the industrial components. The efficiency of the engine is affected by the frictional losses taking place at the engine liner-piston ring interface. The coefficient of friction and the resulting wear is directly related to the effectiveness of the lubrication. One of the methods to achieve good lubrication is by making oil pockets on the surface of the component. This leads to a mixed lubrication regime. The objective of this study focuses on the influence of oil pocket distribution on the effectiveness of lubrication. Oil pockets were made on the liner-ring samples. To simulate the wear behavior, reciprocating wear tests were performed on liner-ring samples at different experimental conditions. Three basic parameters such as load, temperature and frequency were considered for the analysis. The result of this experiment will be analysed.