Presents the results of a study into the use of Hinfinity -optimisation for the design of robust feedback control laws for improving the handling qualities of high-performance helicopters. A low-speed controller was designed to give accurate control of pitch and roll attitude yaw rate and heave velocity for a typical combat helicopter. The design was based on a linearised model obtained from a six-degree-of-freedom nonlinear model of a helicopter. Robustness was a major issue because rotor dynamics were not included in the design model. Numerical compliance of the design with handling qualities requirements was assessed by testing simulated responses against specifications from a proposed airworthiness design standard. Robust stability was assessed from singular-value plots. In addition, the qualitative features of the design were assessed in a piloted flight simulation trial held at RAE, Bedford.


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    Titel :

    Improvement of helicopter handling qualities using Hinfinity -optimisation


    Weitere Titelangaben:

    Verbesserung des Hubschrauber-Handhabungssystems durch Systemoptimierung


    Beteiligte:
    Yue, A. (Autor:in) / Postlethwaite, I. (Autor:in)


    Erscheinungsdatum :

    1990


    Format / Umfang :

    15 Seiten, 28 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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