A helicopter individual blade control (BC) system was tested on a full-scale BO 105 rotor in the NASA Ames 40- by 80-Foot Wind Tunnel. For this test, the rotating pitchlinks were prelaced by servo-actuators developed by ZF Luftfahrttechnik, Germany. Using these actuators, IBC inputs consisting of single-frequency harmonics (2P to 6P), pitch pulses, pitch wavelets, and doublet pitch schedules were introduced in an open-loop manner. IBC inputs of 1P-12P were also tested without blades. An extensive amount of data were acquired for each IBC data point. These data include rotor performance, vibratory hub forces and moments, blade loads, control system loads, blade root pitch motion, blade up accelerations, and BVI noise data. These data indicate very significant reductions of all vibratory rotor forces and moments and suppression of BVI noise using IBC.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Full-scale wind tunnel test of a helicopter individual blade control system


    Additional title:

    Ein im Maßstab 1:1 durchgeführter Windkanaltest eines individuellen Rotorblatt-Überwachungssystems für Hubschrauber


    Contributors:
    Jacklin, S.A. (author) / Nguyen, K.Q. (author) / Blaas, A. (author) / Richter, P. (author)


    Publication date :

    1994


    Size :

    18 Seiten, 25 Bilder, 7 Tabellen, 23 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Full-scale wind tunnel investigation of a helicopter individual blade control system

    Jacklin, Stephen A. / Leyland, Jane A. / Blaas, Achim | NTRS | 1993


    Full-scale wind tunnel investigation of a helicopter individual blade control system

    Jacklin, S.A. / Leyland, J.A. / Blaas, A. | Tema Archive | 1993


    FULL-SCALE WIND TUNNEL INVESTIGATION OF A HELICOPTER INDIVIDUAL BLADE CONTROL SYSTEM

    JACKLIN, STEPHEN / LEYLAND, JANE / BLAAS, ACHIM | AIAA | 1993


    FULL-SCALE WIND TUNNEL TEST OF AN INDIVIDUAL BLADE CONTROL SYSTEM FOR A UH-60 HELICOPTER

    Jacklin, S. A. / Haber, A. / de Simone, G. et al. | British Library Conference Proceedings | 2002


    Helicopter Rotor Blade Aeroacoustics: A Comparison of Model-Scale Wind Tunnel with Full-Scale Flight Test Results

    Heller, H. / Buchholz, H. / Schultz, K.-J. et al. | British Library Conference Proceedings | 1996