Identification of lubrication regimes in mechanical seals using acoustic emission for condition monitoring

Hossein Towsyfyan, Nasha Wei, Fengshou Gu, Andrew D. Ball

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)


The quality of lubrication condition between seal faces directly affects the reliability, operating life and sealing performance of mechanical seals. Thus, the identification of lubrication regimes in face seals i.e. boundary lubrication (BL), mixed lubrication (ML) and hydrodynamic lubrication (HL) is of high importance for developing effective online condition monitoring approaches. This paper investigates the tribological behaviour and frictional characteristics of mechanical seals based on nonintrusive acoustic emission (AE) measurements. Mathematical models for AE generation mechanisms are derived based on the tribological behaviour and operating parameters of mechanical seals. They produce agreeable results with experimental data in explaining the types of AE signals observed in monitoring the face lubrication conditions. Frequency domain analysis of data shows that the viscous friction process generates more low frequency AE signals, whereas the asperity interactions show more high frequency AE. Moreover, the feasibility of using statistical parameters of the time domain data is shown to identify the lubrication regimes in face seals.

Original languageEnglish
Title of host publication54th Annual British Conference of Non-Destructive Testing, NDT 2015
PublisherBritish Institute of Non-Destructive Testing
Publication statusPublished - 2015
Event54th Annual British Conference of Non-Destructive Testing - The International Centre, Telford, United Kingdom
Duration: 8 Sep 201510 Sep 2015
Conference number: 54 (Link to Conference Website)


Conference54th Annual British Conference of Non-Destructive Testing
Abbreviated titleNDT 2015
Country/TerritoryUnited Kingdom
Internet address


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