On the use of Acoustic Emission as an aid to understanding of lubricated contacts in tribological systems

Clarke, Alastair ORCID: https://orcid.org/0000-0002-3603-6000, Hutt, Simon, Cockerill, Aaron, Pullin, Rhys ORCID: https://orcid.org/0000-0002-2853-6099 and Evans, Henry ORCID: https://orcid.org/0000-0002-6989-0190 2018. On the use of Acoustic Emission as an aid to understanding of lubricated contacts in tribological systems. Presented at: 21st International Colloquium Tribology, Esslingen, 9th-11th January 2018.

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Abstract

Acoustic Emission (AE) has been long established as a sensitive tool for detecting damage and failure in engi-neering structures, where sensors are used to detect the elastic stress waves originating from crack growth, impact damage, plastic deformation and other failure mechanisms. It is a useful tool capable of detecting failure at an earlier stage than more conventional moni-toring techniques, and offers much potential insight into conditions in tribological contacts. This paper examines the sensitivity of AE to mixed lubrication conditions, with a view to evaluating the suitability of the technique for monitoring heavily load-ed concentrated contacts in power transmission gear systems where roughness scale fatigue phenomena such as micropitting are a problem. It then discusses the results of using AE to monitor bearings, highlighting some of the challenges which must be overcome to enable its adoption as a condition monitoring tool.

Item Type:	Conference or Workshop Item (Paper)
Status:	Unpublished
Schools:	Engineering
Subjects:	T Technology > TJ Mechanical engineering and machinery
Last Modified:	23 Nov 2022 10:06
URI:	https://orca.cardiff.ac.uk/id/eprint/115515

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