Innovative composite gyroplane rotor blades : fatigue tests

• Autorzy: Wojtas M. , Sobieszek A. , Szczepanik T.

Identyfikatory

DOI

10.5604/01.3001.0012.4822

• Języki publikacji: EN

Abstrakty

EN

The paper presents test bench method for verifying the fatigue life of the rotor blades, working in operating conditions in a position steady flight (autorotation), on the aviation construction called the gyroplane. One of the critical elements of this design is the main rotor, which in its modern versions takes the form of advanced composite structures subjected to loads in flight complex variable, the nature of which differs from the well-known operating conditions of helicopter rotors. The article includes a description of the test object, which are composite rotor blades designed specifically to work in autorotation, the specificity of loads of autorotation rotor, and method of implementation of the gyroplane rotor work cycles in the test bench. The main aim of this research is to evaluate the sustainability of the composite blades under the gyroplane operating loads with the goal to allow the rotor to operate in the air. The tests were carried out for 100 hours of gyroplane flight at loads do not exceed the maximum operating loads, and for several hours under a load higher than operating. During test for the evaluation of composite structure, the infrared camera with dedicated software IRNDT was used. The reached showed structural integrity in critical mounting section of the blade.

Słowa kluczowe

EN

rotor blades; fatigue tests; NDT; composite

• 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: 2018
• Tom: Vol. 25, No. 4
• Strony: 447--453
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Wojtas M.

• Institute of Aviation Department of Transport and Energy Conversion Division Krakowska Av. 110/114, 02-256 Warsaw, Poland tel.: [phone], ext. 224, 711

autor

Sobieszek A.

• Institute of Aviation Department of Transport and Energy Conversion Division Krakowska Av. 110/114, 02-256 Warsaw, Poland tel.: [phone], ext. 224, 711

autor

Szczepanik T.

• Institute of Aviation Department of Transport and Energy Conversion Division Krakowska Av. 110/114, 02-256 Warsaw, Poland tel.: [phone], ext. 224, 711

Bibliografia

• [1] Czyż, Z., Łusiak, T., Czyż, D., Kasperek, D., Analysis of the pre-rotation engine loads in the autogyro, Advances in Science and Technology, Vol. 10, No. 31, pp. 169-176, 2016.
• [2] Duda, H., Pruter, I., Flight performance of lightweight gyroplanes, 28th International Congress of the Aeronautical Sciences, Brisbane, Australia 2012.
• [3] Niemi Jr., E. E., Raghu Gowda, B. V., Gyroplane rotor aerodynamics revisited – blade flapping and RPM variation in zero-g flight, 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Orlando, Florida 2011.
• [4] Sobieszek, A., Assessment of feasibility the use of infrared techniques in aviation – testing structures and aviation part, Journal of KONES, Vol. 23, No. 4, pp. 479-485, 2016.
• [5] Sobieszek, A., Wojtas, M., Composite rotor blades tests essential before mounting on gyroplane, Journal of KONES, , Vol. 23, No. 4, pp. 487-494, 2016.
• [6] Stalewski, W., Aerodynamic design of modern gyroplane main rotors, Transactions of the Institute of Aviation, No. 1 (242), pp. 80-93, Warsaw 2016.
• [7] Stalewski, W., Zalewski, W., Analysis of selected states of gyroplane flight based on computational aerodynamic characteristics of its components, Transactions of the Institute of Aviation, No. 219, pp. 280-288, Warsaw 2011.
• [8] Stalewski, W., Dziubiński, A., Projektowanie aerodynamiczne wirnika autorotacyjnego, XI Międzyuczelniane Inżynierskie Warsztaty Lotnicze, Bezmiechowa 2014.
• [9] www.wirnikautorotacyjny.pl.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).