The DART is a new telescope architecture consisting of a single aperture formed from two cylindrical parabolic reflectors. The system is ideally suited to using tensioned membranes for the reflective surfaces, owing to the zero Gaussian curvature of a cylindrical parabola. In this paper, we present experimental measurements for shaping the membranes by using curved boundary elements to achieve coarse shaping, and a pair of precision rails shaped by moments and forces at the ends, and lightly pushed into the surface, to provide fine shape control.


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    Titel :

    Shaping of parabolic cylindrical membrane reflectors for the Dart Precision Test Bed


    Beteiligte:
    Morgan, R. (Autor:in) / Agnes, Gregory S. (Autor:in) / Dragovan, M. (Autor:in) / Barber, D. (Autor:in) / Marcin, M. (Autor:in) / White, C. (Autor:in) / Dooley, J. (Autor:in) / Hatheway, A. (Autor:in)

    Kongress:

    AIAA Structures, Structural Dynamics, and Materials Conference ; 2004 ; Palm Springs, CA, United States


    Erscheinungsdatum :

    2004-04-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




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