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.


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    Title :

    Application of time-domain unsteady aerodynamics to rotary-wing aeroelasticity


    Additional title:

    Anwendung von im Zeitbereich unstetiger Aerodynamik auf Drehlfuegel-Aeroelastizitaet


    Contributors:

    Published in:

    AIAA Journal ; 24 , 9 ; 1424-1432


    Publication date :

    1986


    Size :

    9 Seiten, 10 Bilder, 16 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English