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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/11734
Title: Influence of wear on the performance of hole-entry hybrid misaligned journal bearing in turbulent regime
Authors: Ram N.
Sharma, Satish Chandra
Published in: Industrial Lubrication and Tribology
Abstract: Purpose - The present work aimed to study analytically the influence of wear on the performance of a capillary-compensated hole-entry hybrid misaligned journal bearing system operating in a turbulent regime. The numerically simulated results are presented for the chosen values of restrictor design parameter, Reynolds numbers, wear depth and misalignment parameters. Design/methodology/approach - The wear caused on the bearing surface due to start/stop operations is modeled using the Dufrane's abrasive wear model. The modified Reynolds equation based on Constantinescu's lubrication theory is solved using finite element method together with capillary restrictor flow equation. Findings - It is found that the value of minimum fluid-film thickness increases significantly for a constant value of restrictor design parameter when unworn aligned bearing operates in turbulent regime vis-à-vis laminar regime. Further, it has also been observed that when a worn bearing operates in laminar/turbulent regimes, the reduction in the value of minimum fluid-film thickness is more due to journal misalignment as compared to the aligned bearing operates in laminar regime. Originality/value - The present work is original concerning the performance of worn hole-entry hybrid misaligned journal bearing system operating in turbulent regime. The results are expected to be quite useful for the bearing designer. Copyright © 2014 Emerald Group Publishing Limited. All rights reserved.
Citation: Industrial Lubrication and Tribology (2014), 66(4): 509-519
URI: https://doi.org/10.1108/ILT-12-2011-0113
http://repository.iitr.ac.in/handle/123456789/11734
Issue Date: 2014
Publisher: Emerald Group Publishing Ltd.
Keywords: Dufranes abrasive wear model
Hybrid journal bearing
Journal misalignment
Reynolds numbers
Turbulence
Wear
ISSN: 368792
Author Scopus IDs: 46061314700
8142901100
Author Affiliations: Ram, N., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, India
Sharma, S.C., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, India
Corresponding Author: Ram, N.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, India; email: n.r.jaan10@gmail.com
Appears in Collections:Journal Publications [ME]

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