Validation of reference sampling for failure detection by crankshaft angular speed analysis

• Autorzy: Dereszewski M. , Charchalis A.

Identyfikatory

DOI

10.5604/12314005.1130432

• Języki publikacji: EN

Abstrakty

EN

The paper presents results of the experiment focused on evaluation of records of runs of the engine in good condition as a reference for subsequent detection of faults of fuel system of medium speed diesel engine. The aim of research was determination of limits of instantaneous angular speed's spread spotted between random starts of the engine, without any fault condition simulation. Due to fine variation of the load setup and different ambient condition, every record of angular speed of independent starting, despite of attempts to sustain the same load and rotational speed value, presents some deviations between runs. Having on mind utilization of such measurement as a template for further comparison, is crucial to find out how random changes of ambient conditions and accuracy of revolutionary speed setup affect the IAS magnitude course. The answer was got in way of registration of numerous runs of the test engine after independent starts and hand adjustment of required RPM’s. The experiment was carried out at laboratory stand in GdyniaMaritimeUniversity, equipped with diesel engine Sulzer 3AL 25/30 driving electrogenerator. Sulzer 3AL 25/30 is three cylinder, medium speed, four stroke marine diesel engine, with maximum output 400 kW at 750 rpm. Independent records were treated as random variable and were compared each other. Obtained results were compared with differences between healthy engine and with simulated malfunctions of fuel injection.

Słowa kluczowe

EN

diagnostics; marine diesel engine; angular speed; reference comparison

• 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: 2014
• Tom: Vol. 21, No. 4
• Strony: 63--70
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Dereszewski M.

• Gdynia Maritime University, Mechanical Faculty Morska Street 83, 81-225 Gdynia, Poland tel.: [phone]

autor

Charchalis A.

• Gdynia Maritime University, Mechanical Faculty Morska Street 83, 81-225 Gdynia, Poland tel.: [phone]

Bibliografia

• [1] Pawletko, R., Ocena wrażliwości diagnostycznej przebiegu ciśnienia indykowanego średnioobrotowego silnika spalinowego, Diagnostyka, Vol. 31, 2004.
• [2] Polanowski, S., Studium metod analizy wykresów indykatorowych w aspekcie diagnostyki silników okrętowych, Zeszyty Naukowe AMW Nr 169 A, Gdynia 2007.
• [3] Dereszewski, M., Charchalis, Analysis of diagnostic utility of instantaneous angular speed of a sea going vessel propulsion shaft, Journal of KONES, Vol. 18, No. 1, 2011.
• [4] Dereszewski, M., Wykorzystanie modelu dynamicznego silnika sulzer 3al25 do symulacji wpływu zmian obciążenia i uszkodzeń na fluktuację prędkości kątowej, Zeszyty Naukowe AM Gdynia, No. 81,2013.
• [5] Wojnowski, W., Okrętowe Siłownie Spalinowe, część III, Wydawnictwo Akademii Marynarki Wojennej, Wew. 1023, 2002.