A tribometer and methodology for wear and friction testing of porous journal bearings at elevated temperatures
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 10 April 2020
Issue publication date: 16 October 2020
Abstract
Purpose
This paper aims on a methodology to overcome the fact that conventional service life testing of porous journal bearings (PJBs) requires long test times and is not economical.
Design/methodology/approach
This paper sketches out a pathway to strongly accelerated life tests for PJBs enabled by high load and elevated temperature, which saves months or even years of testing. The testing time is not only reduced to a few weeks, but the results are also statistically secured via a multiple test rig construction of a custom-made tribometer.
Findings
An exemplary bearing-lubricant combination is tested in the mixed lubrication regime, where the coefficient of friction is monitored during the test.
Originality/value
A Weibull curve is fitted to the experimental results to show the survival probability of the combination over time.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0351/
Keywords
Acknowledgements
S.J.E. acknowledges the government of Lower Austria for financially supporting the endowed professorship tribology at the TU Wien (Grant no. WST3-F-5031370/001-2017) in collaboration with AC2T research GmbH. The authors wish to thank Christoph Haslehner, Bettina Ronai, and Thomas Lebersorger for their support with experiments and design. Thanks also to Guido Boidi and Markus Varga for reading through the manuscript and providing many useful suggestions.
Fundings: This work was funded by the Austrian COMET-Pro\-gram (Project K2, XTribology, no. 849109) and carried out at the “Excellence Center of Tribology”.
Citation
Ielchici, C.D., Krenn, S. and Eder, S.J. (2020), "A tribometer and methodology for wear and friction testing of porous journal bearings at elevated temperatures", Industrial Lubrication and Tribology, Vol. 72 No. 8, pp. 1027-1031. https://doi.org/10.1108/ILT-08-2019-0351
Publisher
:Emerald Publishing Limited
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