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.
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July 2002
Technical Papers
Internal Combustion Engine Noise Analysis With Time-Frequency Distribution
G. T. Zheng,
G. T. Zheng
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing, China 100083
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A. Y. T. Leung
A. Y. T. Leung
School of Engineering, Manchester University, Manchester, UK
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G. T. Zheng
School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing, China 100083
A. Y. T. Leung
School of Engineering, Manchester University, Manchester, UK
Contributed by the Internal Combustion Engine Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division, June 2000; final revision received by the ASME Headquarters, August 2001. Editor: D. N. Assanis.
J. Eng. Gas Turbines Power. Jul 2002, 124(3): 645-649 (5 pages)
Published Online: June 19, 2002
Article history
Received:
June 1, 2000
Revised:
August 1, 2001
Online:
June 19, 2002
Citation
Zheng, G. T., and Leung, A. Y. T. (June 19, 2002). "Internal Combustion Engine Noise Analysis With Time-Frequency Distribution ." ASME. J. Eng. Gas Turbines Power. July 2002; 124(3): 645–649. https://doi.org/10.1115/1.1455639
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