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Identification of diesel front sound source based on continuous wavelet transform
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HAO Zhi-yong, HAN Jun. Identification of diesel front sound source based on continuous wavelet transform[J]. Journal of Zhejiang University Science A, 2004, 5(9): 1069-1075.
@article{title="Identification of diesel front sound source based on continuous wavelet transform",
author="HAO Zhi-yong, HAN Jun",
journal="Journal of Zhejiang University Science A",
volume="5",
number="9",
pages="1069-1075",
year="2004",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2004.1069"
}
%0 Journal Article
%T Identification of diesel front sound source based on continuous wavelet transform
%A HAO Zhi-yong
%A HAN Jun
%J Journal of Zhejiang University SCIENCE A
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%D 2004
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2004.1069
TY - JOUR
T1 - Identification of diesel front sound source based on continuous wavelet transform
A1 - HAO Zhi-yong
A1 - HAN Jun
J0 - Journal of Zhejiang University Science A
VL - 5
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SP - 1069
EP - 1075
%@ 1869-1951
Y1 - 2004
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2004.1069
Abstract: acoustic signals from diesel engines contain useful information but also include considerable noise components. To extract information for condition monitoring purposes, continuous wavelet transform (CWT) is used for the characterization of engine acoustics. This paper first reviews CWT characteristics represented by short duration transient signals. Wavelet selection and CWT are then implemented and wavelet transform is used to analyze the major sources of the engine front’s exterior radiation sound. The research provides a reliable basis for engineering practice to reduce vehicle sound level. Comparison of the identification results of the measured acoustic signals with the identification results of the measured surface vibration showed good agreement.
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