2019Gyroplane rotor hubs strength tests

• Autorzy: Wojtas Małgorzata , Sobieszek Agnieszka

Identyfikatory

DOI

10.2478/kones-2019-0082

• Języki publikacji: EN

Abstrakty

EN

In this article a review of rotor,hub constructions were presented. Discussed rotor’s hub ismade of composite or aluminum alloys materials. Two types of rotor hub were presented (four-blades and two-blades teetering rotor hub), each of them are dedicated to gyroplanes. Typical gyroplane main rotors are characterized by simple design, especially in case of rotors forlight gyroplanes. In the following part of the article thetype of strength tests required by certification process were shown. The test programs based on legal aspects of admission to the flight tests taking into account legislation such as CS 27 (Subpart C – Strength Requirements), CAP 643 British Civil Airworthiness requirements Section T Light gyroplanes, ASTM F2972. Furthermore, this articlediscusses strength tests of gyroplane rotor hub such as measured parameters, methodology of measurement, types of sensors, course of test, test stands, and limit loads. The loads during “pull-up from level flight” manoeuvreare limit loads during tests. Required additional processes, like averification the same parameters by two types of method were shown i.e.deformation of structure were tested by strain gauges and reverse engineering.Strength tests had to be made before flight test, based on results of them aircrafts are flight authorized. In conclusion,the results of tests were presented and fulfilment of legal assumptions and requirements were shown.

Słowa kluczowe

EN

gyroplane; strength tests; rotor hub; aviation regulations

• 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: 2019
• Tom: Vol. 26, No. 3
• Strony: 265--270
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Wojtas Małgorzata

• Łukasiewicz Research Network – Institute of AviationDepartment of Transport and Energy Conversion DivisionKrakowska Av. 110/114, 02-256 Warsaw, Poland tel.: [phone] ext. 224

autor

Sobieszek Agnieszka

• Łukasiewicz Research Network – Institute of AviationDepartment of Transport and Energy Conversion DivisionKrakowska Av. 110/114, 02-256 Warsaw, Poland tel.: [phone] ext. 224

Bibliografia

• [1] Bronowicz, J., Obliczenia obciążeń zewnętrznych wirnika wiatrakowca Fusioncopter FC-4 dla przypadków lotnych według wymagań przepisów CS-27, FC.w2.Dob.jbr.016.ver1, Świdnik 2013.
• [2] CAP 643 – British Civil Airworthiness requirements. Section T Light gyroplanes, 9 May 2013.
• [3] Cieślak, S., Instability of the gyroplane teetering rotor in axial flow, Transactions of the Institute of Aviation, No. 2 (235), pp. 28-37, Warsaw 2015.
• [4] CS-27 – Certification Specifications for Small rotorcraft, change 3, 11 December 2012.
• [5] Obciążenia łopat i głowicy wirnika nośnego wiatrakowca I-28 wariant b, Internal Report, Institute of Aviation, 2013.
• [6] Sobieszek, A., Wojtas, M., Certification process of aircraft’s subassemblies based on strength tests of innovative gyroplane rotor hub, Transactions of the Institute of Aviation, Vol. 4, No. 241, pp. 73-86, Warsaw 2014.
• [7] Standard Specification for Light Sport Aircraft Manufacturer’s Quality Assurance System, ASTM F2972 – 15, 2015.
• [8] Static tests of the gyrocopter rotor hub – Fusioncopter, FC4 FC.w02.DDW.ILo.003.ver3, Warsaw 2014.
• [9] Szczepanik, T., Analysis of the state of the gyroplane world market, Transactions of the Institute of Aviation, No. 3 (244), pp. 227-238, Warsaw 2016.
• [10] Trendak, A., Łącznik wirnika wiatrakowca, RP Patent PL409109, 2014.
• [11] Wojtas, M., Szczepanik, T., Czajkowski, Ł., New technology of layered structures implemented in selected gyroplane components, 31st Congress of the International Council of the Aero-nautical Science, Belo Horizonte 2018.
• [12] Wojtas, M. Trendak, M., New gyroplane hub connector with positive coning angle, Journal of KONES, Vol. 24, No. 3, pp. 325-330, 2017.
• [13] http://www.trendak.eu.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).