The aeroelastic equations of motion governing a hypersonic vehicle in free flight are derived. The equations of motion for a translating and rotating flexible body using Lagrange's equations in terms of quasi-coordinates are presented. These equations are simplified for the case of a vehicle with pitch and plunge rigid body degrees of freedom and small elastic displacements. The displacements are approximated by a truncated series of the unrestrained mode shapes, which are obtained using equivalent plate theory. Subsequently, the nonlinear equations of motion are linearized about the trim state, which is obtained using a rigid body trim model and steady hypersonic aerodynamics. The appropriate flutter derivatives are calculated from piston theory. Results describing mode shapes, trim behavior, and aeroelastic stability of a generic hypersonic vehicle are presented.


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    Titel :

    Aeroelastic Analysis of a Trimmed Generic Hypersonic Vehicle


    Beteiligte:
    Nydick, I. (Autor:in) / Friedmann, P. P. (Autor:in)


    Erscheinungsdatum :

    01.06.1999


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Aeroelastic Analysis of a Trimmed Generic Hypersonic Vehicle

    Nydick, I. / Friedmann, P. P. | British Library Online Contents | 1997



    Aeroelastic Analysis of a Trimmed Generic Hypersonic Vehicle

    Nydick, I. / Friedmann, P. / AIAA et al. | British Library Conference Proceedings | 1996


    Aeroelastic Analysis of a Trimmed Generic Hypersonic Vehicle

    Nydick, I. / Friedmann, P. P. / Confederation of European Aerospace Societies et al. | British Library Conference Proceedings | 1999