This chapter considers the effect that aeroelastic deflections of the flexible wing have on the aerodynamic influence, or effectiveness, of the control surfaces in comparison to the rigid wing. It shows that as the speed increases the effectiveness reduces until at some critical speed ‐ the reversal speed ‐ there is no response to application of the control surface. At speeds greater than the reversal speed, the action of the controls reverses, a phenomenon known as control reversal. There are two basic ways that the aircraft industry considers these static aeroelastic phenomena. These are illustrated (i) by considering a wing with a fixed root experiencing a control deflection, and (ii) for a wing rolling at a constant rate; in both cases a simple rectangular wing plus aileron is used. Static aeroelastic calculations are employed fairly early in the design process to size the control surfaces.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Static Aeroelasticity – Effect of Wing Flexibility on Control Effectiveness


    Contributors:


    Publication date :

    2014-12-02


    Size :

    11 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English






    Static Aeroelasticity and the Flying Wing

    Terrance A. Weisshaar / Holt Ashley | AIAA | 1973


    Static aeroelasticity and the flying wing, revisited

    Weisshaar, T. A. / Ashley, H. | NTRS | 1974