Alternation of the dynamic coefficients of short journal bearings due to wear

Simple item page
dc.contributor.authorPapanikolaou, Michail
dc.contributor.authorFarmakopoulos, Michael G.
dc.contributor.authorPapadopoulos, Chris A.
dc.date.accessioned2019-05-22T15:16:50Z
dc.date.available2019-05-22T15:16:50Z
dc.date.issued2015-05-31
dc.description.abstractPurpose – Wear in journal bearings occurs when the operating conditions (high load, high temperature,low angular velocity or low viscosity), downgrade the ability of the bearing to carry load. The wear depth increases because the rotor comes in contact with the bearing surface. Wear in journal bearings affects their characteristics because of its influence on the thickness of the fluid film. This influence can be detected in the dynamic behavior of the rotor and especially in the dynamic stiffness and damping coefficients. The paper aims to discuss these issues. Design/methodology/approach – In this paper, the effect of wear on the rotor dynamic stiffness and damping coefficients (K and C) of a short journal bearing is investigated. K and C in this work are estimated by using two methods a semi-analytical method and finite element (FE) analysis implemented in the ANSYS software. Findings – The main goal of this research is to make the identification of wear in journal bearings feasible by observing the alternation of their dynamic coefficients. Both of the methods implemented are proven to be useful, while FE analysis can provide more accurate results. Originality/value – This paper is original and has not been published elsewhere.en_UK
dc.identifier.citationMichael G. Papanikolaou, Michael G. Farmakopoulos and Chris A. Papadopoulos. Alternation of the dynamic coefficients of short journal bearings due to wear. International Journal of Structural Integrity, Volume 6, Issue 5, 2015, pp. 649-664en_UK
dc.identifier.issn1757-9864
dc.identifier.urihttps://doi.org/10.1108/IJSI-05-2014-0025
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14196
dc.language.isoenen_UK
dc.publisherEmeralden_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectWearen_UK
dc.subjectdynamic coefficientsen_UK
dc.subjecthydrodynamic journal bearingen_UK
dc.titleAlternation of the dynamic coefficients of short journal bearings due to wearen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
dynamic_coefficients_of_short_journal_bearings-2015.pdf
Size:
948.31 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)