This paper presents a new active in-flight rotorblade tracking control system for helicopters equipped with trailing-edge flap actuators on the rotor blades. The objective of the in-flight rotorblade tracking controller is to minimize vibrations in the helicopter cabin and vibratory loads at the rotor hub induced by static blade dissimilarities. The control design is based on a steady-state transfer matrix from flap inputs to vibration outputs, which is first identified experimentally and then symmetrized. For this design model, an analytically derived Moore–Penrose pseudoinverse, which plays a key role in overcoming restrictions of existing approaches, such as the dependency on full-rank transfer matrices, is used. The system is verified through flight tests carried out with a full-scale experimental helicopter. The results demonstrate that the presented in-flight tracking system effectively minimizes the tracking error induced vibrations.


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    Titel :

    In-Flight Rotorblade Tracking Control for Helicopters Using Active Trailing-Edge Flaps


    Beteiligte:
    King, F. A. (Autor:in) / Maurice, J.-B. (Autor:in) / Fichter, W. (Autor:in) / Dieterich, O. (Autor:in) / Konstanzer, P. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.03.2014




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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    King, Frank / Maurice, Jean-Baptiste / Fichter, Walter et al. | AIAA | 2012


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    King, F. / Maurice, J.-B. / Fichter, W. et al. | British Library Conference Proceedings | 2012


    Application Issues for In-Flight Tracking Control Using Trailing Edge Flaps

    King, Frank A. / Steinwandel, Alexander / Fichter, Walter | British Library Conference Proceedings | 2016