Design, fabrication, and structural testing of a lightweight shadow shield for deep-space application
David Miao, James R. Barber, Richard L. DeWitt, United States. National Aeronautics and Space Administration
National Aeronautics and Space Administration, 1977 - Technology & Engineering - 48 pages
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adhesively bonded aluminum bottom sheet calculated centimeters circuit cooldown transient Cryogenic CSTV program deep-space deflection double-sheeted shadow shield equation experimentally measured strains fabricated Figure 19 full-scale heat transfer hydrogen inner surface Lewis Research Center LIGHTWEIGHT SHADOW SHIELD liquid-hydrogen flow tubes load per unit loading wur located mechanical and thermal mounted Mylar NASA NASA TN outer surface payload simulator pretension propellant prototype shield radiation Reflector plate rim temperatures Schjeldahl X-850 shadow shield assembly shadow shield sheets sheet and rim sheet material sheet seam sheet tabs shield design shroud and payload space stainless steel Strain gage strain histories stress surface between load tab loading points tank temperature differential tension test condition test hardware test interval test package test period test phases Thermal Analysis thermal contraction thermal protection system thermally induced loading thermocouples transient cooldown U. S. customary units unit width vacuum wire X-850 material Young's modulus