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Diesel engine problems, acoustic emission signals and simulated misfire faults

Lowe, David Patrick, Wu, Weiliang, Tan, Andy C. C., & Brown, Richard J. (2011) Diesel engine problems, acoustic emission signals and simulated misfire faults. In 5th World Congress on Engineering Asset Management (WCEAM-AGIC 2010), 25-27 October 2010, Brisbane Convention & Exhibition Centre.

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Abstract

This paper discusses commonly encountered diesel engine problems and the underlying combustion related faults. Also discussed are the methods used in previous studies to simulate diesel engine faults and the initial results of an experimental simulation of a common combustion related diesel engine fault, namely diesel engine misfire. This experimental fault simulation represents the first step towards a comprehensive investigation and analysis into the characteristics of acoustic emission signals arising from combustion related diesel engine faults. Data corresponding to different engine running conditions was captured using in-cylinder pressure, vibration and acoustic emission transducers along with both crank-angle encoder and top-dead centre signals. Using these signals, it was possible to characterise the diesel engine in-cylinder pressure profiles and the effect of different combustion conditions on both vibration and acoustic emission signals.

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ID Code: 50612
Item Type: Conference Paper
Keywords: Diesel engine, Misfire, Faults, Acoustic emission
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Research Centres > CRC Integrated Engineering Asset Management (CIEAM)
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
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Copyright Owner: Copyright 2011 Please consult the authors.
Deposited On: 28 May 2012 13:11
Last Modified: 28 May 2012 13:12

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