Aeroelastic modeling procedures used in the design of a piezoelectric controllable twist helicopter rotor wind tunnel model are described. Two aeroelastic analysis methods developed for active twist rotor studies, and used in the design of the model blade, are described in this paper. The first procedure uses a simple flap-torsion dynamic representation of the active twist blade, and is intended for rapid and efficient control law and design optimization studies. The second technique employs a commercially available comprehensive rotor analysis package, and is used for more detailed analytical studies. Analytical predictions of hovering flight twist actuation frequency responses are presented for both techniques. Forward flight fixed system nP vibration suppression capabilities of the model active twist rotor system are also presented. Frequency responses predicted using both analytical procedures agree qualitatively for all design cases considered, with best correlation for cases where uniform blade properties are assumed.


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    Titel :

    Aeroelastic analysis of the NASA/Army/MIT active twist rotor


    Beteiligte:
    Wilkie, W.K. (Autor:in) / Wilbur, M.L. (Autor:in) / Mirick, P.H. (Autor:in) / Cesnik, C.E.S. (Autor:in) / Shin, Sang-Joon (Autor:in)


    Erscheinungsdatum :

    1999


    Format / Umfang :

    13 Seiten, 31 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Shin, S. / Cesnik, C. E. S. / Japan Society for Aeronautical and Space Services | British Library Conference Proceedings | 2000


    Aeroelastic and Acoustic Analysis of an Active Twist Rotor

    Thepvongs, S. / Royal Aeronautical Society | British Library Conference Proceedings | 2005


    Hover Testing of the NASA/Army/MIT Active Twist Rotor Prototype Blade

    Wilbur, M. L. / Yeager, W. / Wilkie, W. et al. | British Library Conference Proceedings | 2000


    Vibratory loads reduction testing of the NASA/Army/MIT active twist rotor

    Wilbur, M.L. / Mirick, P.H. / Yaeger, W.T. jun. et al. | Tema Archiv | 2002