Internal combustion engine noise analysis with time-frequency distribution
Author(s)
Author(s)
Zheng, G. T.
Date Issued
2002
Publisher
The American Society of Mechanical Engineers
Journal
Journal of Engineering for Gas Turbines and Power
Volume
124
Issue
3
Start page
645
End page
649
Abstract
An analysis procedure, using the time-frequency distribution, has been developed for the analysis of internal combustion engine noise signals. It provides an approach making use of advantages of both the linear time-frequency distribution and the bilinear time-frequency distribution but avoiding their disadvantages. In order to identify requirements on the time-frequency analysis and also correlate a time-frequency analysis result with noise sources, the composition of the noise signal is discussed first. With this discussion, a mathematical model has been suggested for the noise signal. An example of identifying noise sources and detecting the abnormal condition of an injector with the noise signal time-frequency distribution for a diesel engine is also provided.
SFU Affiliated Publication
No
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