Modern diagnostics of aircraft gas turbine engines – some selected issues

• Autorzy: Lewitowicz, J. , Kowalski, M. , Żyluk, A.

Warianty tytułu

PL

Nowoczesna diagnostyka lotniczych silników turbinowych - wybrane zagadnienia

• Języki publikacji: EN

Abstrakty

EN

In aeronautics, the question of maintaining the highest possible level of flight safety is the most crucial issue. This is the reason why the scientists, engineers, and aerospace/aviation engineering staff keep searching for ever newer and more reliable methods of increasing the safety level. Therefore, new methods – primarily non-destructive ones – to diagnose aircraft turbine engines are looked for. These methods are expected to prove useful for the real-time monitoring of actual health of the engine and its assemblies. The paper has been intended to outline the most recent methods of diagnosing aircraft turbine engines, including the computed tomography methods as applied to assess health/maintenance status of turbine blades, for the phase mapping of increments in the engine’s rotational speed, to diagnose health/maintenance status of the compressor’s 1st stage rotor blades in pure jets. Other methods discussed are, e.g. vibroacoustic and tribological ones.

PL

W lotnictwie utrzymywanie bardzo wysokiego poziomu bezpieczeństwa lotów jest podstawowym zadaniem. Z tego powodu naukowcy, inżynierowie i personel służby inżynieryjno-lotniczej poszukuje coraz to nowszych i bardziej niezawodnych metod zwiększania tego poziomu bezpieczeństwa. W tym celu poszukuje się głównie bezinwazyjnych metod diagnozowania turbinowych silników lotniczych, z pomocą których można monitorować aktualny stan techniczny silnika i jego zespołów. W referacie przedstawiono skrótowo nowoczesne metody diagnozowania lotniczych silników turbinowych, w tym tomografię komputerową do oceny stanu technicznego łopatek turbin, odwzorowania fazowego przyrostu prędkości obrotowej silnika do diagnozowania głównie stanu technicznego łopatek pierwszego stopnia wirnika sprężarki turbinowych silników odrzutowych jednoprzepływowych, wibroakustyczne, tribologiczne itp.

Słowa kluczowe

PL

diagnostyka; silnik lotniczy

EN

diagnostics; aircraft engine

• Czasopismo: Journal of KONBiN
• Rocznik: 2014
• Tom: No. 1 (29)
• Strony: 33--40
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Lewitowicz, J.

• Air Force Institute of Technology, Warsaw - Poland,

autor

Kowalski, M.

• Air Force Institute of Technology, Warsaw - Poland,

autor

Żyluk, A.

• Air Force Institute of Technology, Warsaw - Poland,

Bibliografia

• [1] Błachnio J., Bogdan M.: The assessment of the gas-turbine blade condition as based on changes in blade-surface colours. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 2, AFIT, Warszawa 2012 (in Polish).
• [2] Błachnio J., Spychała J., Chalimoniuk M.: Computed tomography (CT) as a non-destructive technique to evaluate condition of gas turbine blades. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 1, AFIT, Warszawa 2012 (in Polish).
• [3] EchoTherm User Manual. Thermal Wave Imaging, Inc. 2009.
• [4] Kowalski M.: Maintenance of gas turbine engines with the phase mapping method applied. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 7, AFIT, Warszawa 2012 (in Polish).
• [5] Kowalski M., Szczepanik R.: Phase mapping and analysis of the performance of an aircraft engine with full-range microprocessor-based engine control unit FADEC type. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 7, Chapter 10, AFIT, Warszawa 2010 (in Polish).
• [6] Kułaszka A., Błachnio J.: A non-destructive thermography-based method to assess gas-turbine blade condition. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 8. AFIT, Warszawa 2012 (in Polish).
• [7] Lindstedt P., Golak K., Borowczyk H.: A complex method to predict in-flight functional properties of an aircraft turbine engine on the basis of ground tests. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 11, AFIT, Warszawa 2012 (in Polish).
• [8] Lindstedt P., Grądzki R., Borowczyk H.: A parametric method to diagnose a turbo-machine’s blade, with non-measurable factors in the blade’s environment eliminated. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 12, AFIT, Warszawa 2012 (in Polish).
• [9] Szczepanik R. et al: Report on: Examination of the dn/dt = f(n) characteristics of engines of the 89 type to identify characteristic points of the phase portrait. ITWL Reports, No. V 1209, Warszawa 2003 (in Polish).
• [10] Szczepanik R.: The in-service examination of the first-stage compressor rotor blades of a one-pass turbojet engine. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 17, AFIT, Warszawa 2012 (in Polish).
• [11] Szczekala M., Majewski P., Żokowski M.: Vibration monitoring in turbojet engines. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 1, AFIT, Warszawa 2012 (in Polish).
• [12] Zboiński M., Spychała J.: Vibroacoustic and tribological diagnosing methods as applied to the monitoring of the turbo-prop’s life still left. The Problems of Studying, Testing and Operating Aeronautical Systems. Vol. 8, Chapter 20, AFIT, Warszawa 2012 (in Polish).