Smoothing and decomposition of disturbances of the indicator diagrams with application of the moving approximating objects with broken bonds

• Autorzy: Polanowski S.
• Języki publikacji: EN

Abstrakty

EN

There is defined a notion of a moving approximating object and there are also defined some types of bonds applied in construction the approximating objects in that work. There is presented the influence of using the broken bonds on the quality of smoothing the impulse disturbances and on the phase errors of approximation. The quality of the approximation, obtained by means of the Savitzky-Golay filters and by means of elaborated by Author approximating objects with the broken bonds, is compared on the examples of processing the indicator diagrams of the marine engines. It is proved that using the broken bonds, better smoothing of the impulse disturbances is obtained, without increasing the phase errors. That fact has a meaningful influence on the precision of determining the combustion beginnings, the first derivatives of the pressure and as a result on the precision of determining the curve of intensity of the heat release. The presented examples show the possibility of application of the approximating objects with the broken bonds in multilevel decomposition of disturbances. It can be useful in processing the results of the pressure measurements on the indicator valves. It can also be used in processing the results of the stand tests charged with the disturbances which are not of the gauss type.

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2005
• Tom: Vol. 12, No. 1-2
• Strony: 299--306
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Polanowski S.

• Gdynia Naval University 81-103 Gdynia, Śmidowicza 69, Poland tel.: [phone],

Bibliografia

• [1] Polanowski S., Analiza danych pomiarowych z zastosowaniem ruchomych obiektów aproksymjących. Nr 2 (157), Zeszyty Naukowe AMW 2004.
• [2] Polanowski S., Szybka obróbka wykresu indykatorowego do celów kontroli i sterowania. Warszawa, Mat. III Symp. Nauk. EKODIESEL’96.
• [3] Polanowski. S.: The processing of indicator diagrams with the use of the moving approximating objects. Combustion Engines. No 1/2005.
• [4] Savitzky A., Golay M.J.E., Smoothing and Differentiation of Data by Simplified Least Squares Procedures. Vol. 36, Analytical Chemistry 1964.
• [5] Wysocki H., Polanowski S., Dekompozycja falkowa wykresu indykatorowego silnika okrętowego za pomocą Wavelet Explorer. Nr 1(160), Zeszyty Naukowe AMW 2005.