Numerical Investigation of Pressure Profile in Hydrodynamic Lubrication Thrust BearingReport as inadecuate




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International Scholarly Research Notices - Volume 2014 2014, Article ID 157615, 8 pages -

Research ArticleDepartment of Mechanical Engineering, National Institute of Technology, Srinagar 190006, India

Received 3 March 2014; Revised 25 June 2014; Accepted 17 July 2014; Published 29 October 2014

Academic Editor: Jan Awrejcewicz

Copyright © 2014 Farooq Ahmad Najar and G. A. Harmain. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Reynolds equation is solved using finite difference method FDM on the surface of the tilting pad to find the pressure distribution in the lubricant oil film. Different pressure profiles with grid independence are described. The present work evaluates pressure at various locations after performing a thorough grid refinement. In recent similar works, this aspect has not been addressed. However, present study shows that it can have significant effect on the pressure profile. Results of a sector shaped pad are presented and it is shown that the maximum average value of pressure is 12% approximately greater than the previous results. Grid independence occurs after 24 × 24 grids. A parameter “” has been proposed to provide convenient indicator of obtaining grid independent results. , , where “” can be fixed to a convenient value and a constant minimum film thickness value of 75 μm is used in present study. This important parameter is highlighted in the present work; the location of the peak pressure zone in terms of coordinates is getting shifted by changing the grid size which will help the designer and experimentalist to conveniently determine the position of pressure measurement probe.





Author: Farooq Ahmad Najar and G. A. Harmain

Source: https://www.hindawi.com/



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