Transonic aeroelastic solutions based upon the transonic small perturbation potential equation were studied. Time-marching transient solutions of plunging and pitching airfoils were analyzed using a complex exponential modal identification technique, and seven alternative integration techniques for the structural equations were evaluated. The HYTRAN2 code was used to determine transonic flutter boundaries versus Mach number and angle-of-attack for NACA 64A010 and MBB A-3 airfoils. In the code, a monotone differencing method, which eliminates leading edge expansion shocks, is used to solve the potential equation. When the effect of static pitching moment upon the angle-of-attack is included, the MBB A-3 airfoil can have multiple flutter speeds at a given Mach number.


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    Titel :

    Time-Marching Transonic Flutter Solutions Including Angle-of-Attack Effects


    Beteiligte:
    J. W. Edwards (Autor:in) / R. M. Bennett (Autor:in) / W. Whitlow (Autor:in) / D. A. Seidel (Autor:in)

    Erscheinungsdatum :

    1982


    Format / Umfang :

    16 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Time-marching transonic flutter solutions including angle-of-attack effects

    Edwards, J. W. / Bennett, R. M. / Whitlow, W., Jr. et al. | NTRS | 1982


    Time-marching transonic flutter solutions including angle-of-attack effects

    EDWARDS, J. W. / BENNETT, R. M. / WHITLOW, W. et al. | AIAA | 1983


    Time-marching transonic flutter solutions including angle-of-attack effects

    Edwards, J. W. / Bennett, R. M. / Whitlow, W., Jr. et al. | NTRS | 1983


    Time-marching transonic flutter solutions including angle-of-attack effects

    EDWARDS, J. / BENNETT, R. / WHITLOW, JR., W. et al. | AIAA | 1982


    Effects of angle of attack on transonic flutter of a supercritical wing

    Yates, E. C., Jr. / Wynne, E. C. / Farmer, M. G. | NTRS | 1983