Longitudinal control system design is considered for a linearized dynamic model of a supersonic transport aircraft concept characterized by relaxed static stability and significant aeroelastic interactions. Two LQG-type controllers are designed using the frequency-domain additive uncertainty formulation to ensure robustness to unmodeled flexible modes. The first controller is based on a 4th-order model containing only the rigid-body modes, while the second controller is based on an 8th-order model that additionally includes the two most prominent flexible modes. The performance obtainable from the 4th-order controller is not adequate, while the 8th-order controller is found to provide better performance. Frequency-domain and time-domain (Lyapunov) methods are subsequently used to assess the robustness of the 8th-order controller to parametric uncertainties in the design model.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Longitudinal Control of High Speed Aircraft in the Presence of Aeroelastic Modes


    Beteiligte:
    S. M. Joshi (Autor:in) / A. G. Kelkar (Autor:in)

    Erscheinungsdatum :

    1996


    Format / Umfang :

    30 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Motion Magnification For Quantifying Aeroelastic Modes From High-Speed Videos

    Bao, Yanqing / Seshadri, Pranay / Mahadevan, Sankaran | AIAA | 2017


    Study of bending-torsion aeroelastic modes for aircraft wings

    Goland, M. / Luke, Y.L. | Engineering Index Backfile | 1949


    Longitudinal control system for high-speed aircraft

    Wendt, H.O. | Engineering Index Backfile | 1948


    LONGITUDINAL CONTROL SYSTEM FOR HIGH-SPEED AIRCRAFT

    WENDT, HAROLD O. | SAE Technical Papers | 1948