This paper presents the methodology for incorporating finite-state, arbitrary motion time-domain aerodynamics in rotary-wing aeroelastic problems in hover and forward flight. The essential ingredients of a generalized-version Greenberg's theory for time-domain unsteady aerodynamics are presented and incorporated a coupled nonlinear flap-lag analysis. Aeroelastic stability boundaries for both hover and forward flight are obtained using both arbitrary-motion time-domain aerodynamics. The sensitivity of flap-lag aeroelastic stability boundaries to time-domain, arbitrary-motion unsteady aerodynamics is evaluated by comparing the two sets of results for various blade configurations and flight conditions.
Application of time-domain unsteady aerodynamics to rotary-wing aeroelasticity
Anwendung von im Zeitbereich unstetiger Aerodynamik auf Drehlfuegel-Aeroelastizitaet
AIAA Journal ; 24 , 9 ; 1424-1432
1986
9 Seiten, 10 Bilder, 16 Quellen
Article (Journal)
English