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Dynamic Testing of a Subscale Sunshield for the Next Generation Space Telescope (NGST)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.
Document ID
20010027547
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Lienard, Sebastien (IDEAMECH SAS Ramonville Saint Agne France)
Johnston, John D. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Ross, Brian (NASA Goddard Space Flight Center Greenbelt, MD United States)
Smith, James (NASA Goddard Space Flight Center Greenbelt, MD United States)
Brodeur, Steve
Date Acquired
September 7, 2013
Publication Date
January 1, 2001
Subject Category
Astronomy
Report/Patent Number
AIAA Paper 2001-1268
Report Number: AIAA Paper 2001-1268
Meeting Information
Meeting: 42nd AIAA Structures, Structural Dynamics, and Materials Conference
Location: Seattle, WA
Country: United States
Start Date: April 16, 2001
End Date: April 19, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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