Enhancing the working of Journal Bearing using Internal cavity

Abstract

Hydrodynamic journal bearings are commonly used in various rotating machines such as pumps, compressors,
fans, turbines and generators are widely used in industries. A journal bearing is the most common hydrodynamic bearing in
which, a circular shaft, called the journal, is made to rotate in a fixed sleeve is called the bearing. Their design and construction
may be relatively simple, but the theory and operation of these bearings can be complex. Surface texturing helps in effective
lubrication and thus it optimizes the bearing performance. To improve the performance of bearings the use of textured surfaces
having different shapes of textures and at different locations of the texture zone can be an effective approach.
During my work the parameters like speed of the shaft, bearing context texture and different loading conditions are of prime
importance and are considered to judge the performance of the journal bearing. By varying the bearing surface texture, force
applied and speed of the shaft, pressure profile is generated for each combination of force, speed and bearing texture and the
bearing performance is observed. After obtaining the effects of the parameters on the performance of the journal bearing, the
optimum combination can be found for each bearing texture.