E.R. Wood, R. Kolar, A.S. Cricelli

Although, a constant tip loss factor is at best a crude representation of three-dimensional ftow effects, it has found widespread use because of its simplicity and accuracy in both hover and forward ftight performance and dynamic analysis calculations. This paper will show that a time-dependent formulation for tip loss factor, instead of a constant, is preferable for rotor blade dynamic analysis in forward Bight. Substantiation for this new formulation is based upon analysis and simple reasonings that relate to H-34 Bight test data, with respect to time histories of the radial distributions of blade airloads and ftapwise bending moment.

17th European Rotorcraft Forum 1991, Berlin

Conference Paper

englisch

21,0 x 29,7 cm, 6 Seiten

DGLR-Bericht, 1991, 1991-08, 17th European Rotorcraft Forum Proceedings; S.453-458; 1991; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

helicopters, h-34 helicopter, tip loss factor

Bestellbar

1991