New gyroplane hub connector with positive coning angle

• Autorzy: Wojtas M. , Trendak M.

Identyfikatory

DOI

10.5604/01.3001.0010.3080

• Języki publikacji: EN

Abstrakty

EN

The article presents advantages and disadvantages of two blade teetering rotors with constructional dihedral angle greater than 0o . Several structural design solutions of rotor hub connector are shown in this work. However, the main attention is focused on innovative hub connector design and manufactured by Trendak Aviation Company during the project “Research and development works on innovative construction of aircrafts of weight over 560 kilograms”. Discusses structural advantages of the new rotor hub connector according to other construction. Also were raised issues related to the load of the gyroplane rotor during the flight, in particular the load of rotor blades root, during a gyroplane break manoeuvre, according to conning angle of rotor hub connector. The disadvantages of using the structural dihedral angle in teetering rotors are also presented, focusing on the rotor aeroelastic instability so-called waving, which from the literature analysed is concerned only with two blades teetering rotors. Performed a coarse analysis in SMOG program, prepared at the Institute of Aviation for the analysis of helicopter and gyroplanes rotors. The stability analysis of the rotor for a number of structural dihedral angle and blades setting pitch was performed. Basis of this analysis the stability boundary were determined for the analysed gyroplane rotor with connector hub with positive coning angle of 2.8o. .

Słowa kluczowe

EN

blade dihedral angle; waving; rotor instability; teetering rotor

• 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: 2017
• Tom: Vol. 24, No. 3
• Strony: 325--330
• Opis fizyczny: Bibliogr. 18 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

autor

Trendak M.

• AVIATION Artur Trendak Nowowiejskiego Street 26A, 96-313 Jaktorów Kolonia, Poland tel.: [phone]

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).