Modern rotorcraft flight control system designs which promise to yield high vehicle response bandwidth and good gust rejection can benefit from the use of rotor-state feedbacks. The measurement of main rotor blade motions is also desirable to validate and improve rotorcraft simulation models, to identify high-order linear flight dynamics models, to provide rotor system health monitoring; during flight test, and to provide for correlation with acoustic measurements from wind tunnel and flight tests. However, few attempts have been made to instrument a flight vehicle in this manner, and no previous system has had the robustness and accuracy required for these diverse applications. A rotor blade motion measurement and estimation system has been developed by NASA and the U.S. Army for use on the Rotorcraft Aircrew Systems Concepts Airborne Laboratory (RASCAL) helicopter. RASCAL is a UH-60 Blackhawk which is being modified at Ames Research Center in a phased development program for use in flight dynamics and controls, navigation, airspace management, and rotorcraft human factors research. The aircraft will feature a full-authority, digital, fly-by-wire research flight control system; a coupled ring laser gyro, differential GPS based navigation system; a stereoscopic color wide field of view helmet, mounted display; programmable panel mounted displays; and advanced navigation sensors. The rotor blade motion system is currently installed for data acquisition only, but will be integrated with the research flight control system when it is installed later this year.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    State Estimation of Main Rotor Flap and Lead-Lag Using Accelerometers and Laser Transducers on the RASCAL UH-60 Helicopter


    Beteiligte:
    J. W. Fletcher (Autor:in) / R. T. N. Chen (Autor:in) / E. Strasilla (Autor:in)

    Erscheinungsdatum :

    1995


    Format / Umfang :

    7 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Design and Testing of Flight Control Laws on the RASCAL Research Helicopter

    Frost, Chad / Hindson, William / Moralez, Ernesto et al. | AIAA | 2002


    Driving Impressions - Bedford Rascal

    Weatherley,B. / Bedford,GB | Kraftfahrwesen | 1986


    ACTIVE INTERROGATION OF HELICOPTER MAIN ROTOR FAULTS USING A TRAILING EDGE FLAP ACTUATION

    Stevens, P. / Smith, E. C. / American Helicopter Society | British Library Conference Proceedings | 2001


    HELICOPTER MAIN ROTOR

    KORZH NIKOLAJ AFANASEVICH | Europäisches Patentamt | 2017

    Freier Zugriff