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

Sébastien Lienard | Zendy; John D. Johnston | Zendy; Brian Ross | Zendy; James C. Smith | Zendy

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

Author(s) -

Sébastien Lienard,

John D. Johnston,

Brian Ross,

James C. Smith

Publication year - 2001

Publication title -

35th aiaa applied aerodynamics conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2001-1268

Subject(s) - spitzer space telescope , james webb space telescope , computer science , space (punctuation) , space exploration , telescope , astronomy , physics , operating system

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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