This paper presents a controllability study for a square solar sail that uses the wing tip displacement method for its attitude control. The goal is to determine whether this method of attitude control guarantees full control authority over normal attitude maneuvers that would be expected during a typical solar sail mission. The controllability of a given state is determined by first linearizing the full nonlinear equations of motion of the craft about the chosen state, and then applying the classical controllability test to the resulting linear model. This process is then repeated enough times to adequately span the allowable states of the vehicle. Because of the nature of the expressions for the control torques, direct analytical linearizations are not practical; and a full numerical approach is inefficient because of the sheer volume of computations involved. A hybrid linearization method that judiciously combines analytical and numerical approaches was therefore adopted. Results obtained show that the sailcraft is controllable throughout the tested region. A study of the influence of various actuator failure scenarios on controllability revealed that the wing tip displacement method of attitude control exhibits a very high degree of redundancy. The system’s controllability only becomes seriously impaired if more than half of its actuators fail.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Controllability of a square solar sail with movable membrane tips


    Beteiligte:
    Fu, Bo (Autor:in) / Gede, Gilbert (Autor:in) / Eke, Fidelis O (Autor:in)


    Erscheinungsdatum :

    2017-05-01


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Preliminary Solar Sail Design and Fabrication Assessment: Spinning Sail Blade, Square Sail Sheet

    Daniels, J. B. / Dowdle, D. M. / Hahn, D. W. et al. | NTRS | 1977


    SHIP HAVING SQUARE SAIL FORMED WITH HARD SAIL, AND METHOD FOR ACCOMMODATING AND DEVELOPING SQUARE SAIL

    KITASHIRO AKIHIKO / HIRAYAMA AKIHITO / SANO KENICHI et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    Design Study of a Square Solar Sail Architecture

    G. Greschik / M. M. Mikulas | AIAA | 2002


    Forces and Moments on a Square Solar Sail

    Zeiders, Glenn | AIAA | 2007