Characterising the friction and wear between the piston ring and cylinder liner based on acoustic emission analysis

Nasha Wei, Fengshou Gu, Guoxing Li, Tie Wang, Andrew Ball

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, an experimental investigation was carried out to evaluate the friction and wear between the cylinder liner and piston ring using acoustic emission (AE) technology. Based on a typical compression ignition (CI) diesel engine, four types of alternative fuels (Fischer-Tropsch fuel, methanol-diesel, emulsified diesel and standard diesel) were tested under different operating conditions. AE signals collected from the cylinder block of the testing engine. In the meantime, the AE signals in one engine cycle are further segregated into small segments to eliminate the effects of valve events on friction events of cylinder liner. In this way, the resulted AE signals are consistent with the prediction of hydrodynamic lubrication processes. Test results show that there are clear evidences of high AE deviations between different fuels. In particular, the methanol-diesel blended fuel produces higher AE energy, which indicates there are more wear between the piston ring and cylinder liner than using standard diesel. On the other hand, the other two alternative fuels have been found little differences in AE signal from the normal diesel. This paper has shown that AE analysis is an effective technique for on-line assessment of engine friction and wear, which provides a novel approach to support the development of new engine fuels and new lubricants.

Original languageEnglish
Title of host publication21st International Congress on Sound and Vibration 2014, ICSV 2014
PublisherInternational Institute of Acoustics and Vibrations
Pages2734-2741
Number of pages8
Volume3
ISBN (Electronic)9781634392389
Publication statusPublished - 2014
Event21st International Congress on Sound and Vibration 2014 - Beijing, China
Duration: 13 Jul 201417 Jul 2014

Conference

Conference21st International Congress on Sound and Vibration 2014
Abbreviated titleICSV 2014
CountryChina
CityBeijing
Period13/07/1417/07/14

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Wei, N., Gu, F., Li, G., Wang, T., & Ball, A. (2014). Characterising the friction and wear between the piston ring and cylinder liner based on acoustic emission analysis. In 21st International Congress on Sound and Vibration 2014, ICSV 2014 (Vol. 3, pp. 2734-2741). International Institute of Acoustics and Vibrations.