A study of the tribological behaviour of piston ring/cylinder liner interaction in diesel engines using acoustic emission

R. M. Douglas, J. A. Steel, R. L. Reuben

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

The novel use of non-intrusive acoustic emission (AE) measurements to provide information pertaining to the interaction between piston rings and cylinder liners in a range of diesel engines is investigated in this paper. In doing so, this technique is shown to offer a new method of investigation into this important interface in engine operation.

AE generated during normal engine operation is known to consist of contributions from a number of different sources such as injector and valve activity. A recent finding has been the identification of AE signals associated with the ring/liner interface which presents the opportunity for in-service monitoring. This work discusses the possible AE source mechanisms, such as asperity contact, lubricant flow and/or blowby, through reference to a number of tests on motored and in-service small HSDI diesel engines and large, 2-stroke, marine diesel engines. The influence of various factors such as engine speed, load and lubrication is considered. (c) 2006 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1634-1642
Number of pages9
JournalTribology International
Volume39
Issue number12
DOIs
Publication statusPublished - Dec 2006

Keywords

  • WEAR
  • condition monitoring
  • piston ring/cylinder linear interface
  • acoustic emission
  • DISK
  • sliding friction
  • FRICTION
  • HEAD
  • CONTACT
  • SIGNAL

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