Diagnosis of gas turbine engines rotors systems in nonstationary states

• Autorzy: Grządziela A.
• Języki publikacji: EN

Abstrakty

EN

Vibration tests of marine gas turbine engines are performed as research of on-line and off-line types. On-line Systems generally monitored one or two vibration symptoms, which asses the limited and/or the critical values of parameters and they, potentially, can warn and/or shutdown engines. Off-line Systems are usually used for vibration analysis during non-steady state of work. The paper presents comparison of different methods of analysis of vibration symptoms measured under run-up and shut-down processes of marine gas turbine engines. Results of tests were recorded on gas turbine engine DR76 type of the COGAG type propulsion system. Main goal of the research was qualified on helpfulness and unambiguous result, from synchronous measurement, order tracking and auto tracking. All vibration symptoms were chosen from the methodology of the diagnosing gas turbine engines operated in the Polish Navy, called Base Diagnosing System. Second purpose of the paper was the estimation of the possibility of usage those analysis methods of gas turbine engines for on-line monitoring systems.

Słowa kluczowe

EN

dynamics; gas turbines; rotor vibration; run-up process

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2011
• Tom: Vol. 6, no 2
• Strony: 103--112
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Grządziela A.

• Polish Naval Academy, Mechanical Electrical Faculty uL. Śmidowicza 69, 81-103 Gdynia, Poland tel. [phone],

Bibliografia

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• [2] Downham, E., Woods, R., The rationale of monitoring vibration on rotating machinery, ASME Vibration Conference, Paper 71 - Vib - 96, Sept. 8 - 10, 1971.
• [3] Grządziela, A., Vibroacoustic method of shafting coaxiality assessment of COGAG propulsion system of a vessel, Polish Maritime Researches, No 3, pp. 29–30, Gdańsk 1999.
• [4] Grządziela, A., Diagnosing of naval gas turbine rotors with the use of vibroacoustics parameters, Polish Maritime Researches, No 3, pp. 14–17, Gdańsk 2000.
• [5] Grządziela, A., Vibration analysis of unbalancing of marine gas turbines rotors, „Mechanika”, , t. 23, z. 2, pp. 187–194, Kraków 2004.
• [6] Pedersen, T. F., Gade, S., Harlufsen, H., Konstantin-Hansen, H., Order tracking in Vibroacoustic Measurements: A Novel Approach Eliminating the Tacho Probe, Technical Review, No 1, Brüel & Kjær, pp. 15–28, Nerum 2006.
• [7] Krzyworzeka, P., Adamczyk, J., Cioch, W., Jamro, E., Monitoring of nonstationary states in rotation machinery, Biblioteka Problemów Eksploatacji, Wydawnictwo ITeE, Radom 2007.
• [8] Rządkowski, R., Dynamics of steam and gas turbines, IFFM Publishers, Gdańsk 2009.