ANALYSIS OF GREASING AND WEAR PROCESSES ON THE SLIDING BEARINGS OF A NAVAL PROPULSION ENGINE

"In recent years maritime and inland waterway transport have developed unprecedentedly in close agreement with the rapid pace of industrialization and the increase in domestic and foreign freight traffic. This led to the development and upgrading of naval equipment. Thus, a series of programs have also been developed in the field of operation and maintenance of naval equipment. This also involved certain upgrades in the field of equipment maintenance and implicitly in terms of lubrication and increasing the service life to their nominal parameters. This development of shipping also included the development of engine oils. an important part of the safe operation of naval propulsion engines. Nothing is more important for the life of an internal combustion engine than proper lubrication and oil filtration for the engine and other moving parts. This paper aims to analyze the lubrication systems and the wear processes at the sliding bearings of the engine assembly for a marine propulsion engine. The last part of the paper presents the thermal calculation of the sliding bearings both due to the fluid friction and the heat release from the engine. The reference engine considered in the calculation of the lubrication system was a naval engine type ROLLS-ROYCE-B32: 40L8P with a rated power of 4000 kW. Starting from the oil flow required for lubrication, the oil flow required to dissipate the heat from the bed bearing was determined. "