Estimation of fuel spraying from diesel engine injector using multiresolution wavelet analysis of vibroacoustic signals

• Autorzy: Boguś P. , Dedo M. , Grzeszczyk R. , Wrona A. , Markowski J. , Merkisz J.
• Konferencja: International Congress on Combustion Engines (5 ; 24-26.06.2013 ; Bielsko-Biala, Poland)
• Języki publikacji: EN

Abstrakty

EN

The paper presents the application of wavelet multiresolution analysis to injection diagnostics using vibro-acoustic signals. The vibroacoustic signals were acquired in a research bench for testing the Diesel engine injectors. This measurement of vibroacoustic signal is carried out using mems accelerometer mounted to a reactive cylinder with real injector placed centrally inside it. Estimation of fuel spraying parameters was done by comparison of recorded vibroacoustic signals of correctly working injector and injector with simulated malfunction resulting in incorrect injector stream. For each original signal the 6 multiresolution approximation components were taken into account and for each signal and all components some chosen parameters were calculated. Then the suitable simple classifier was designed to distinguish between correctly and incorrectly working injector. The research results presented in the paper proved that some signal parameters obtained for high frequency multiresolution components can be used as diagnostic parameters for fault detection in injector testing bench applications.

Słowa kluczowe

EN

injector diagnostic; multiresolution analysis; vibroacoustic signals

PL

diagnostyka wtryskiwaczy; analiza wielorozdzielcza; sygnały wibroakustyczne

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2015
• Tom: R. 54, nr 3
• Strony: 264--270
• Opis fizyczny: Bibliogr. 12 poz., pełen tekst na CD

Twórcy

autor

Boguś P.

• Physics and Biophysics of Medical University of Gdańsk
• Rail Vehicle Institute TABOR in Poznań

autor

Dedo M.

• Automex sp. z o.o., Gdańsk

autor

Grzeszczyk R.

• Automex sp. z o.o., Gdańsk

autor

Wrona A.

• Automex sp. z o.o., Gdańsk

autor

Markowski J.

• Faculty of Working Machines and Transportation at Poznan University of Technology

autor

Merkisz J.

• Faculty of Working Machines and Transportation at Poznan University of Technology

Bibliografia

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