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Finite Element Modeling of a Semi-Rigid Hybrid Mirror and a Highly Actuated Membrane Mirror as Candidates for the Next Generation Space TelescopeAdvanced space telescopes, which will eventually replace the Hubble Space Telescope (HTS), will have apertures of 8 - 20 n. Primary mirrors of these dimensions will have to be foldable to fit into the space launcher. By necessity these mirrors will be extremely light weight and flexible and the historical approaches to mirror designs, where the mirror is made as rigid as possible to maintain figure and to serve as the anchor for the entire telescope, cannot be applied any longer. New design concepts and verifications will depend entirely on analytical methods to predict optical performance. Finite element modeling of the structural and thermal behavior of such mirrors is becoming the tool for advanced space mirror designs. This paper discusses some of the preliminary tasks and study results, which are currently the basis for the design studies of the Next Generation Space Telescope.
Document ID
20000044320
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Craig, Larry
(NASA Marshall Space Flight Center Huntsville, AL United States)
Jacobson, Dave
(NASA Marshall Space Flight Center Huntsville, AL United States)
Mosier, Gary
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Nein, Max
(NASA Marshall Space Flight Center Huntsville, AL United States)
Page, Timothy
(NASA Marshall Space Flight Center Huntsville, AL United States)
Redding, Dave
(Jet Propulsion Lab., California Inst. of Tech. Wrightwood, CA United States)
Sutherlin, Steve
(NASA Marshall Space Flight Center Huntsville, AL United States)
Wilkerson, Gary
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 2000
Subject Category
Astronomy
Meeting Information
Meeting: International Symposium Astronomical Telescopes and Instrumentation 2000
Location: Munich
Country: Germany
Start Date: March 27, 2000
End Date: March 31, 2000
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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