The NGST sunshield is a lightweight, flexible structure consisting of multiple layers of pretensioned, thin-film membranes supported by deployable booms. The structural dynamic behavior of the sunshield must be well understood in order to predict its influence on observatory performance. Ground tests were carried out in a vacuum environment to characterize the structural dynamic behavior of a one-tenth scale model of the sunshield. Results from the tests will be used to validate analytical modeling techniques that can be used in conjunction with scaling laws to predict the performance of the full-sized structure. This paper summarizes the ground tests and presents representative results for the dynamic behavior of the sunshield.


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    Titel :

    Dynamic Testing of a Subscale Sunshield for the Next Generation Space Telescope (NGST)


    Beteiligte:
    Lienard, Sebastien (Autor:in) / Johnston, John D. (Autor:in) / Ross, Brian (Autor:in) / Smith, James (Autor:in) / Brodeur, Steve (Autor:in)

    Kongress:

    42nd AIAA Structures, Structural Dynamics, and Materials Conference ; 2001 ; Seattle, WA, United States


    Erscheinungsdatum :

    2001-01-01


    Medientyp :

    Preprint


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Dynamic testing of a subscale sunshield for the Next Generation Space Telescope (NGST)

    Lienard, Sebastien / Johnston, John / Ross, Brian et al. | AIAA | 2001


    AIAA-2001-1268 Dynamic Testing of a Subscale Sunshield for the Next Generation Space Telescope (NGST)

    Lienard, S. / Johnston, J. / Ross, B. et al. | British Library Conference Proceedings | 2001



    Inflatable Sunshield in Space (ISIS) Versus Next Generation Space Telescope (NGST) Sunshield-A Mass Properties Comparison

    Cadogan, D. / Carey, J. / Goldstein, E. et al. | British Library Conference Proceedings | 2000


    Next Generation Space Telescope (NGST) Pathfinder Experiment Inflatable Sunshield in Space (ISIS)

    Kaufman, David / Carey, John / Pacini, Linda et al. | SAE Technical Papers | 1999