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Proceedings Paper

The JWST backplane stability test article: a critical technology demonstration
Author(s): Jonathan Arenberg; Larry Gilman; Nick Abbruzze; Justin Reuter; Kristen Anderson; Jas Jahic; Joseph Yacoub; Hector Padilla; Charles Atkinson; Dave Moon; Kevin Patton; Patty May; Jim York; Ted Messer; Stan Backovsky; Jim Tucker; Chris Harvey; Bente Eegholm; Barbara Zukowski; Peter Blake
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Paper Abstract

The unprecedented stability requirements of JWST structures can only be conclusively verified by a combination of analysis and ground test. Given the order of magnitude of the expected motions of the backplane due to thermal distortion and the high level of confidence required on such a large and important project, the demonstration of the ability to verify the thermal distortion analysis to the levels required is a critical need for the program. The demonstration of these analysis tools, in process metrology and manufacturing processes increases the technology readiness level of the backplane to required levels. To develop this critical technology, the Backplane Stability Test Article (BSTA) was added to the JWST program. The BSTA is a representative substructure for the full flight backplane, manufactured using the same resources, materials and processes. The BSTA will be subject to environmental testing and its deformation and damping properties measured. The thermally induced deformation will be compared with predicted deformations to demonstrate the ability to predict thermal deformation to the levels required. This paper will review the key features and requirements of the BSTA and its analysis, the test, measurement and data collection plans.

Paper Details

Date Published: 13 June 2006
PDF: 11 pages
Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62650Q (13 June 2006); doi: 10.1117/12.671714
Show Author Affiliations
Jonathan Arenberg, Northrop Grumman (United States)
Larry Gilman, Northrop Grumman (United States)
Nick Abbruzze, Northrop Grumman (United States)
Justin Reuter, Northrop Grumman (United States)
Kristen Anderson, Northrop Grumman (United States)
Jas Jahic, Northrop Grumman (United States)
Joseph Yacoub, Northrop Grumman (United States)
Hector Padilla, Northrop Grumman (United States)
Charles Atkinson, Northrop Grumman (United States)
Dave Moon, ATK Space Systems (United States)
Kevin Patton, ATK Space Systems (United States)
Patty May, ATK Space Systems (United States)
Jim York, ATK Space Systems (United States)
Ted Messer, ATK Space Systems (United States)
Stan Backovsky, ATK Space Systems (United States)
Jim Tucker, ATK Space Systems (United States)
Chris Harvey, ATK Space Systems (United States)
Bente Eegholm, Swales Aerospace (United States)
Barbara Zukowski, Swales Aerospace (United States)
Peter Blake, Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 6265:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
John C. Mather; Howard A. MacEwen; Mattheus W. M. de Graauw, Editor(s)

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