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A study on acoustic emission signal propagation of a small size multi-cylinder diesel engine

Wu, Weiliang, Lowe, David, & Tan, Andy (2011) A study on acoustic emission signal propagation of a small size multi-cylinder diesel engine. In Lee, Jay (Ed.) Proceedings of the Sixth World Congress on Engineering Asset Management WCEAM 2011, WCEAM, United States of America, Ohio, Cincinatti, pp. 1-12.

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Abstract

Acoustic emission has been found effective in offering earlier fault detection and improving identification capabilities of faults. However, the sensors are inherently uncalibrated. This paper presents a source to sensor paths calibration technique which can lead to diagnosis of faults in a small size multi-cylinder diesel engine. Preliminary analysis of the acoustic emission (AE) signals is outlined, including time domain, time-frequency domain, and the root mean square (RMS) energy. The results reveal how the RMS energy of a source propagates to the adjacent sensors. The findings lead to allocate the source and estimate its inferences to the adjacent sensor, and finally help to diagnose the small size diesel engines by minimising the crosstalk from multiple cylinders.

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155 since deposited on 24 Oct 2011
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ID Code: 46044
Item Type: Conference Paper
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2011 please consult the authors
Deposited On: 24 Oct 2011 10:41
Last Modified: 24 Sep 2012 11:22

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