Improvement of load bearing capacity by changing design parameters and material properties of journal bearings utilized in marine applications

Abstract

Journal bearings are widely employed in a wide variety of applications because of their versatility and the fact that their efficiency is directly tied to their ability to reduce friction while carrying loads. As with other engineering processes, understanding how power is transmitted requires a microscopic degree of analysis. The bearing's state and speed have a major effect on the bearing's ability to do its job. A lubrication coating between the shaft and the sleeve allows the journal bearing to carry the load. The main issue is the pressure that builds up around the perimeter and around the axis, which limits the amount of weight it can carry. Variable speeds and loads are a common cause of pressure increases. Journal bearings are commonly used in marine applications due to their long service life, durability of shaft sleeve, low frictional co-efficient, low maintenance needs, superior abrasion resistance, ease of use, cheap cost, and low pricing. Apart from not contributing to pollution, they are also environmentally friendly and long-lasting. Water-lubricated bearings have a very small global market share. In this study, we discuss the repercussions of adjusting the design parameters or using a different material. To validate information, we employ experimental results alongside our modelling in Solid works and analysis in Ansys Fluent.