Volume 44, No 2, 2022, Pages 322-333

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Computer Simulation and Optimization of Elliptic Bore Journal Bearing

Authors:

Sushanta Kumar Pradhan , Ramanuj Kumar ,
Prakash Chandra Mishra

DOI: 10.24874/ti.1179.09.21.01

Received: 5 September 2021
Revised: 6 November 2021
Accepted: 19 January 2022
Published: 15 June 2022

Abstract:

In this study, the computer simulation is carried out using FORTRAN to develop a theoretical model for estimating the lubrication performance of an elliptic bore journal bearing. The Analysis initially includes the hydrodynamic lubrication principle to solve non-dimensional Reynold’s equation of a finite journal bearing for bearing pressure. Subsequently, the load-carrying capacity, friction force, and lubricant flow are studied for different bearing eccentricities, non-circularity, and surface roughness parameters. The model thus developed, shows a good agreement with available research work. The results predict non-circularity up to (G=1.0) promotes better load-bearing ability, while roughness index (Y=0.1), offers the highest fluid friction. The highest non-dimensional load, friction, and flow-in are found to be 31.12, 45.19, and 6.42 respectively. The optimization shows the favorable condition for low, medium, and high load, friction, and flow-in.

Keywords:

Hydrodynamic lubrication, Elliptic bore journal bearing, Newton Raphson method, Surface roughness, Friction force, Flow-in, Optimization of performance