Investigation on the tribological property of marine engine bearing

Abstract

The marine engine is one of the core devices of the ship. With the continuous progress of science and technology, marine engines are developing towards high power density, and the related tribological problems are more prominent. As one of the most typical friction pairs of marine engines, the crankshaft-bearing bush bears more and more loads and presents a trend of increased wear. By studying the wear behavior of the bearing bush, it is possible to deeply grasp the bearing wear mechanism, speed up the research and development process of the bearing bush, and further improve the wear resistance. In this paper, for the crankshaft-bearing bush pairing pair, a component-level bearing bush friction and wear testing machine is built, and the corresponding test method is established. The binary electroplating bush and an alloy shaft pair are selected for the experiment, and the wear law of the bearing bush is explored.