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Proceedings Article

The JWST backplane stability test article: a critical technology demonstration

[+] Author Affiliations
Jonathan Arenberg, Larry Gilman, Nick Abbruzze, Justin Reuter, Kristen Anderson, Jas Jahic, Joseph Yacoub, Hector Padilla, Charles Atkinson

Northrop Grumman

Dave Moon, Kevin Patton, Patty May, Jim York, Ted Messer, Stan Backovsky, Jim Tucker, Chris Harvey

ATK Space Systems

Marcel Bluth, Bente Eegholm, Barbara Zukowski

Swales Aerospace

Babak Saif

Space Telescope Science Institute

Ritva Keski-Kuha, Peter Blake

Goddard Space Flight Ctr.

Jeff Kegley, Kevin Russell

Marshall Space Flight Ctr.

Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62650Q (June 13, 2006); doi:10.1117/12.671714
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From Conference Volume 6265

  • Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
  • John C. Mather; Howard A. MacEwen; Mattheus W. M. de Graauw
  • Orlando, FL | May 24, 2006

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.

© (2006) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Jonathan Arenberg ; Larry Gilman ; Nick Abbruzze ; Justin Reuter ; Kristen Anderson, et al.
"The JWST backplane stability test article: a critical technology demonstration", Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62650Q (June 13, 2006); doi:10.1117/12.671714; http://dx.doi.org/10.1117/12.671714


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