In this paper, a new method for reconstructing rotor blade air loads from measured structural blade reactions of the rotating rotor blade is presented. The measured structural blade reactions may consist of local bending moments, blade deformations, local accelerations or a combination of these. Using known structural and dynamic properties of the blade, the acting air loads on the blade can be reconstructed in the time and geometric domain. Reconstruction results from flight test measurements with Kamov-26 and Hughes 500 helicopters conducted in Hungary are presented in this paper. The efficiency of the employed reconstruction method is also confirmed by reconstructing high frequent blade vortex interactions.
Reconstruction of rotor blade loading from in-flight measured structural blade reactions
Ermittlung der Belastungen eines Rotorblattes aus während des Fluges durchgeführten Messungen mechanischer Reaktionen des Blattes
Acta Technica Academiae Scientiarium Hungaricae ; 105 , 4 ; 301-324
1993
24 Seiten, 19 Bilder, 18 Quellen
Article (Journal)
English
Rotor blade harmonic air loading
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