One of the most specific important problems for coaxial helicopter rotors is to ensure an adequate clearance between upper and lower rotor blade tips. The results of investigations made in this field are presented and discussed in the present paper. The results of analysis and actual experimental flight data are compared for steady horizontal flight and maneuvering flight conditions. Sufficient reserve of the clearance was achieved for all approved flight envelopes.
Blade flap motion and lower-to-upper rotor blade tips clearances of coaxial helicopters
Rotorblattklappenbewegungen und die Abstände zwischen oberen und unteren Blattspitzen von Koaxial-Helikoptern
Journal of the American Helicopter Society ; 41 , 1 ; 37-51
1996
15 Seiten, 12 Bilder, 7 Quellen
Article (Journal)
English
Hubschrauber , Rotor (Drehflügel) , koaxiale Bauart , Flügelblatt , Abstandsproblem , analytische Untersuchung , Simulationsmodell , Bewegungsgleichung , Vergleichsmessung , Flugeigenschaft , Betriebsparameter , Lastkollektiv , Wirbelströmung , Azimut , Auftrieb , Strömungsgeschwindigkeit , Torsion , elastische Verformung , Winkelgeschwindigkeit , Strömungsvisualisierung
Blade flap motion and lower-to-upper rotor blade tips clearances of coaxial helicopters
Online Contents | 1996
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