A variable-skew oblique wing offers a substantial aerodynamic performance advantage for aircraft missions that require both high efficiency in subsonic flight and supersonic dash or cruise. The most obvious characteristic of the oblique-wing concept is the asymmetry associated with wing-skew angle which results in significant aerodynamic and inertial cross-coupling between the aircraft longitudinal and lateral-directional axes. A technique for synthesizing a decoupling controller while providing the desired stability augmentation. The proposed synthesis procedure uses the cncept of explicit model following. Linear quadratic optimization techniques are used to design the linear feedback system. The effectiveness of the control laws developed in achieving the desired decoupling is illustrated for a given flight condition by application to linearized equations of motion, and also to the nonlinear equations of six degrees of freedom of motion with nonlinear aerodynamic data.


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    Title :

    Model-Following Control for an Oblique-Wing Aircraft


    Contributors:
    G. S. Alag (author) / R. W. Kempel (author) / J. W. Pahle (author) / J. J. Bresina (author) / F. Bartoli (author)

    Publication date :

    1986


    Size :

    14 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Model-following control for an oblique-wing aircraft

    Alag, G. S. / Kempel, R. W. / Pahle, J. W. et al. | NTRS | 1986


    Model-following control for an oblique-wing aircraft

    Alag, G. S. / Kempel, R. W. / Pahle, J. W. et al. | NTRS | 1986


    Model-following control for an oblique-wing aircraft

    ALAG, G. / KEMPEL, R. / PAHLE, J. et al. | AIAA | 1986