Measurement and observation of air-leakage noise in engine intake manifold system using wavelet technique

Jian Da Wu, Peng Hsin Chiang, Yu Hsuan Wang, En Chun Chang, Chiu Hong Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This report describes the principle and experimental investigation of a technique for detecting air-leakage in an internal combustion engine intake manifold. Air-leakage in intake manifold always affects the volumetric efficiency and fuel consumption of internal combustion engine and degrades the overall engine performance. It is well known to be detrimental that the engine system stability and performance must be taken into account in regular maintenance. Conventional method of air-leakage detection in intake manifold is hearing acoustic emission by an experienced technician when the engine in operation condition. Obviously, the conventional technique is not a precision approach for air-leakage detection. In the present study, a continuous wavelet transform technique using acoustic emission is applied to detect the air-leakage in an internal combustion engine intake manifold system. Experiments are carried out to evaluate the acoustic emission using proposed technique under various engine operation conditions. The results indicate that the proposed technique is effective in air-leakage detection of engine intake manifold system.

Original languageEnglish
Title of host publicationIMECS 2007 - International MultiConference of Engineers and Computer Scientists 2007
Pages1498-1503
Number of pages6
Publication statusPublished - 2007 Dec 1
EventInternational MultiConference of Engineers and Computer Scientists 2007, IMECS 2007 - Kowloon, Hong Kong
Duration: 2007 Mar 212007 Mar 23

Publication series

NameLecture Notes in Engineering and Computer Science
Volume2
ISSN (Print)2078-0958

Other

OtherInternational MultiConference of Engineers and Computer Scientists 2007, IMECS 2007
CountryHong Kong
CityKowloon
Period07-03-2107-03-23

Fingerprint

Leakage (fluid)
Engines
Acoustic emissions
Air
Internal combustion engines
Automobile engine manifolds
Audition
System stability
Fuel consumption
Wavelet transforms
Experiments

All Science Journal Classification (ASJC) codes

  • Computer Science (miscellaneous)

Cite this

Wu, J. D., Chiang, P. H., Wang, Y. H., Chang, E. C., & Liu, C. H. (2007). Measurement and observation of air-leakage noise in engine intake manifold system using wavelet technique. In IMECS 2007 - International MultiConference of Engineers and Computer Scientists 2007 (pp. 1498-1503). (Lecture Notes in Engineering and Computer Science; Vol. 2).
Wu, Jian Da ; Chiang, Peng Hsin ; Wang, Yu Hsuan ; Chang, En Chun ; Liu, Chiu Hong. / Measurement and observation of air-leakage noise in engine intake manifold system using wavelet technique. IMECS 2007 - International MultiConference of Engineers and Computer Scientists 2007. 2007. pp. 1498-1503 (Lecture Notes in Engineering and Computer Science).
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abstract = "This report describes the principle and experimental investigation of a technique for detecting air-leakage in an internal combustion engine intake manifold. Air-leakage in intake manifold always affects the volumetric efficiency and fuel consumption of internal combustion engine and degrades the overall engine performance. It is well known to be detrimental that the engine system stability and performance must be taken into account in regular maintenance. Conventional method of air-leakage detection in intake manifold is hearing acoustic emission by an experienced technician when the engine in operation condition. Obviously, the conventional technique is not a precision approach for air-leakage detection. In the present study, a continuous wavelet transform technique using acoustic emission is applied to detect the air-leakage in an internal combustion engine intake manifold system. Experiments are carried out to evaluate the acoustic emission using proposed technique under various engine operation conditions. The results indicate that the proposed technique is effective in air-leakage detection of engine intake manifold system.",
author = "Wu, {Jian Da} and Chiang, {Peng Hsin} and Wang, {Yu Hsuan} and Chang, {En Chun} and Liu, {Chiu Hong}",
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Wu, JD, Chiang, PH, Wang, YH, Chang, EC & Liu, CH 2007, Measurement and observation of air-leakage noise in engine intake manifold system using wavelet technique. in IMECS 2007 - International MultiConference of Engineers and Computer Scientists 2007. Lecture Notes in Engineering and Computer Science, vol. 2, pp. 1498-1503, International MultiConference of Engineers and Computer Scientists 2007, IMECS 2007, Kowloon, Hong Kong, 07-03-21.

Measurement and observation of air-leakage noise in engine intake manifold system using wavelet technique. / Wu, Jian Da; Chiang, Peng Hsin; Wang, Yu Hsuan; Chang, En Chun; Liu, Chiu Hong.

IMECS 2007 - International MultiConference of Engineers and Computer Scientists 2007. 2007. p. 1498-1503 (Lecture Notes in Engineering and Computer Science; Vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - This report describes the principle and experimental investigation of a technique for detecting air-leakage in an internal combustion engine intake manifold. Air-leakage in intake manifold always affects the volumetric efficiency and fuel consumption of internal combustion engine and degrades the overall engine performance. It is well known to be detrimental that the engine system stability and performance must be taken into account in regular maintenance. Conventional method of air-leakage detection in intake manifold is hearing acoustic emission by an experienced technician when the engine in operation condition. Obviously, the conventional technique is not a precision approach for air-leakage detection. In the present study, a continuous wavelet transform technique using acoustic emission is applied to detect the air-leakage in an internal combustion engine intake manifold system. Experiments are carried out to evaluate the acoustic emission using proposed technique under various engine operation conditions. The results indicate that the proposed technique is effective in air-leakage detection of engine intake manifold system.

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Wu JD, Chiang PH, Wang YH, Chang EC, Liu CH. Measurement and observation of air-leakage noise in engine intake manifold system using wavelet technique. In IMECS 2007 - International MultiConference of Engineers and Computer Scientists 2007. 2007. p. 1498-1503. (Lecture Notes in Engineering and Computer Science).