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Proceedings Paper

Application of wavelet transform to analysis of instantaneous speed signals of diesel engines
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Paper Abstract

Instantaneous engine speed of diesel engines (IES) contains useful information that is otherwise difficult to extract due to the nature of extremely small variations under different operating conditions. This paper is focused on condition monitoring of diesel engines where wavelet transform is used to extract sensitive information from signals collected during the engine operation. In this regard, wavelet transforms are reviewed in detail; their inherent advantages are discussed; and criteria for their selection are presented. The experimental setup used in this study and the data collection process are described. Then continuous wavelet transform is applied to the analysis of the instantaneous engine speeds obtained under two different conditions namely internal pressure of the engine and throttle valve positions. To demonstrate the usefulness of the approach, the results are compared with the time domain of the same signals which demonstrate the significant advantage of wavelet transform in this signal analysis. The results can be further extended to more areas of engine diagnostic development.

Paper Details

Date Published:
PDF: 12 pages
Proc. SPIE 6383, Wavelet Applications in Industrial Processing IV, 638303; doi: 10.1117/12.686274
Show Author Affiliations
Harish Nair, Univ. of Detroit Mercy (United States)
Mostafa G. Mehrabi, Univ. of Detroit Mercy (United States)

Published in SPIE Proceedings Vol. 6383:
Wavelet Applications in Industrial Processing IV
Frédéric Truchetet; Olivier Laligant, Editor(s)

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