Analysis of cyclic variability in combustion in internal combustion engines using wavelets

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Abstract

Wavelets have previously received little attention regarding their use in the study of cyclic variability in combustion. This paper provides a short introduction to wavelets and presents the results, in the form of scalograms, of their application to a time series of net heat release values. Although wavelets have advantages over Fourier analysis in that they are capable of revealing transient behaviour, they appear to have shortcomings with respect to establishing sufficient confidence in the validity of the low-frequency features apparently present in the scalograms.
LanguageEnglish
Pages341-353
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Volume225
Issue number3
DOIs
StatusPublished - 1 Mar 2011

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Fourier analysis
Internal combustion engines
Time series
Hot Temperature

Cite this

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abstract = "Wavelets have previously received little attention regarding their use in the study of cyclic variability in combustion. This paper provides a short introduction to wavelets and presents the results, in the form of scalograms, of their application to a time series of net heat release values. Although wavelets have advantages over Fourier analysis in that they are capable of revealing transient behaviour, they appear to have shortcomings with respect to establishing sufficient confidence in the validity of the low-frequency features apparently present in the scalograms.",
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