Model permits direct physical measurement of the thermal response of critical components of space telescopes, thus providing flexibility for systems studies and design changes

Marshall, K. N.

Murray, D. O.

Rolling, R. E.

English

NASA Technical Reports Server

January 1971
	 Brief 71-10019 
NASA TECH BRIEF 
Marshall Space Flight Center 
NASA Tech Briefs announce new technology derived from the U.S. space program. They are issued to encourage 
commercial application. Tech Briefs are available on a subscription basis from the National Technical Information 
Service, Springfield, Virginia 22151. Requests for individual copies or questions relating to the Tech Brief program may 
be directed to the Technology Utilization Office, NASA, Code KT, Washington, D.c. 20546. 
Thermal and Structural Modeling of Superinsulation 
Technical data on the feasibility of modeling 
thermal and structural performance of space tele-
scopes, using basic analytical and experimental ap-
proval, has been compiled. Thermal modeling of large 
space telescope systems was based on a scale model 
of the 2-meter Optical Technology Apollo Extension 
System (OTES) space telescope experimentally as-
sociated with the LEM vehicle. Investigations were 
made into such thermal design parameters as insula-
tion quality, structural member conductance, thermal 
• control coating surface properties and sun shutter 
operating factors. It was shown that model tests 
compared favorably with analytical predictions and 
reinforced the premise that a passive thermal control 
technique would suffice for thermal control of tele-
scope interiors. 
One advantage of such a model is that it permits 
direct physical measurement of the thermal response 
of critical components, thus providing flexibility for 
systems studies and design changes.
Note: 
The following documentation may be obtained 
from:
National Technical Information Service 
Springfield, Virginia 22151 
Single document price $3.00 
(or microfiche $0.95) 
Reference: 
NASA-C R-9824 I (N69-16957), Thermal and 
StructuaI Modeling of a Large Aperture 
Space Telescope 
Patent status: 
No patent action is contemplated by NASA. 
Source: R. E. Rolling, K. N. Marshall, 
and D. 0. Murray of
Lockheed Missiles and Space Co. 
under contract to

Marshall Space Flight Center 
(M FS-20324) 
Category 02 
This document was prepared under the sponsorship of the National 	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States 	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States 	 will be free from privately owned rights.
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Thermal and structural modeling of superinsulation

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