The aerodynamic-structural-control design of a forward-swept composite wing for a high subsonic transport aircraft is considered. The structural analysis is based on a finite-element method. The aerodynamic calculations are based on a vortex-lattice method, and the control calculations are based on an output feedback control. The wing is designed for minimum weight subject to structural, performance/aerodynamic and control constraints. Efficient methods are used to calculate the control-deflection and control-effectiveness sensitivities which appear as second-order derivatives in the control constraint equations. To suppress the aeroelastic divergence of the forward-swept wing, and to reduce the gross weight of the design aircraft, two separate cases are studied: (1) combined application of aeroelastic tailoring and active controls; and (2) aeroelastic tailoring alone. The results of this study indicated that, for this particular example, aeroelastic tailoring is sufficient for suppressing the aeroelastic divergence, and the use of active controls was not necessary.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Integrated aerodynamic-structural-control wing design


    Contributors:


    Publication date :

    1992-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Integrated aerodynamic-structural-control wing design

    RAIS-ROHANI, M. / HAFTKA, R. / GROSSMAN, B. et al. | AIAA | 1992


    Integrated aerodynamic/structural design of a sailplane wing

    Grossman, B. / Gurdal, Z. / Haftka, R. T. et al. | NTRS | 1988


    Integrated aerodynamic-structural design of a transport wing

    Grossman, B. / Haftka, R. T. / Sobieszczanski-Sobieski, Jaroslaw et al. | NTRS | 1990


    Integrated aerodynamic-structural design of a transport wing

    GROSSMAN, B. / HAFTKA, R. / KAO, P.-J. et al. | AIAA | 1989


    Integrated aerodynamic/structural design of a sailplane wing

    GROSSMAN, B. / GURDAL, Z. / HAFTKA, R. T. et al. | AIAA | 1988