In this paper the authors offer a general theory of rotorcraft trim. The theory is set in the context of control theory. It allows for completely arbitrary trim controls and trim settings for multirotor aircraft with tests to ensure that a system is trimmable. In addition, the theory allows for 'optimal trim' in which some variable is minimized or maximized rather than set to a specified value. The theory shows that sequential trim cannot work for free flight. The theory is not tied to any particular trim algorithm; but, in this paper, it is exercised with periodic shooting to show how free-flying rotorcraft can be trimmed in a variety of ways (zero yaw, zero pitch, zero roll, minimum power, etc.) by use of the general theory. The paper also discussed applications to harmonic balance and auto-pilot trim techniques.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A general theory of rotorcraft trim


    Additional title:

    Allgemeine Theorie des Trimmens von Drehflügel-Flugzeugen


    Contributors:
    Peters, D.A. (author) / Barwey, D. (author)


    Publication date :

    1995


    Size :

    33 Seiten, 8 Bilder, 2 Tabellen, 46 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A general theory of rotorcraft trim

    Peters, David / Barwey, Dinesh | AIAA | 1995


    A General Thoery of Rotorcraft Trim

    Peters, D. / Barwey, D. / American Institute of Aeronautics and Astronautics| ASME| ASCE | British Library Conference Proceedings | 1995



    Robust trim procedure for rotorcraft configurations

    Friedman, Chen | Online Contents | 2015