SEPARATION AND IDENTIFICATION OF SIMULATED DIESEL ENGINE NOISE USING INDEPENDENT COMPONENTANALYSIS AND TIME-FREQUENCYANALYSIS
B., B., Elmaihy, A., S., S., A., S., I., M. (2006). SEPARATION AND IDENTIFICATION OF SIMULATED DIESEL ENGINE NOISE USING INDEPENDENT COMPONENTANALYSIS AND TIME-FREQUENCYANALYSIS. EKB Journal Management System, 12(12th International Conference on Applied Mechanics and Mechanical Engineering.), 264-281. doi: 10.21608/amme.2006.42174
Badawi A. B.; A. Elmaihy; Samy A. S.; Shahin M. A.; Mohamed K. I.. "SEPARATION AND IDENTIFICATION OF SIMULATED DIESEL ENGINE NOISE USING INDEPENDENT COMPONENTANALYSIS AND TIME-FREQUENCYANALYSIS". EKB Journal Management System, 12, 12th International Conference on Applied Mechanics and Mechanical Engineering., 2006, 264-281. doi: 10.21608/amme.2006.42174
B., B., Elmaihy, A., S., S., A., S., I., M. (2006). 'SEPARATION AND IDENTIFICATION OF SIMULATED DIESEL ENGINE NOISE USING INDEPENDENT COMPONENTANALYSIS AND TIME-FREQUENCYANALYSIS', EKB Journal Management System, 12(12th International Conference on Applied Mechanics and Mechanical Engineering.), pp. 264-281. doi: 10.21608/amme.2006.42174
B., B., Elmaihy, A., S., S., A., S., I., M. SEPARATION AND IDENTIFICATION OF SIMULATED DIESEL ENGINE NOISE USING INDEPENDENT COMPONENTANALYSIS AND TIME-FREQUENCYANALYSIS. EKB Journal Management System, 2006; 12(12th International Conference on Applied Mechanics and Mechanical Engineering.): 264-281. doi: 10.21608/amme.2006.42174

SEPARATION AND IDENTIFICATION OF SIMULATED DIESEL ENGINE NOISE USING INDEPENDENT COMPONENTANALYSIS AND TIME-FREQUENCYANALYSIS

The International Conference on Applied Mechanics and Mechanical Engineering
Article 27, Volume 12, 12th International Conference on Applied Mechanics and Mechanical Engineering., May 2006, Page 264-281  XML PDF (391.45 K)
Document Type: Original Article
DOI: 10.21608/amme.2006.42174
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Authors
Badawi A. B.1; A. Elmaihy2; Samy A. S.2; Shahin M. A.3; Mohamed K. I.2
1PhD Postgraduate candidate, Dept. of Mech. Power and Energy, Military Technical Collage, Cairo, Egypt.
2Egyptian Armed Forces.
3Assistant Prof., Faculty of Engineering, Modern University of Engineering and Technology, Cairo, Egypt.
Abstract
ABSTRACT:
In this paper the separation and identification of diesel engine noise is investigated using independent component analysis (ICA) and time frequency analysis (TFA). The separation and identification of engine real noise is important for noise reduction and faults diagnosis. This study can be considered as a guide for engine real noise separation and identification. A diesel engine noise is mathematically modeled and a single cylinder engine noise is simulated. The simulated noise sources are exhaust valve close, inlet valve close inlet valve close, fuel injection, combustion, piston slap, exhaust valve open and inlet valve open. The individual simulated engine noise sources signals are considered as acquired signals by seven channels microphone array. The mixed sources signals are separated using ICA. The separated independent components (ICs) are analyzed by short time Fourier transform (STFT) in time-frequency plane. The time is then converted to crank angle in order to identify engine noise sources. As predicted, the results show that the separated engine noise sources well correlated with the engine design specifications.   
Keywords
Diesel engine noise; blind source separation; independent component analysis; short time Fourier transform and time-frequency analysis
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