TY - GEN
T1 - Experimental study of reflector shape control under various thermal conditions
AU - Inagaki, Akiya
AU - Sakamoto, Hiraku
AU - Tanaka, Hiroaki
AU - Ishimura, Kosei
AU - Okuma, Masaaki
N1 - Publisher Copyright:
© 2015, American Institute of Aeronautics and Astronautics Inc. All rights reserved.
PY - 2015
Y1 - 2015
N2 - This study clarifies the effect of thermal deformation in the reconfigurable space reflector system, through a series of experiments in a thermostatic chamber using a prototype of reconfigurable space reflectors. This study then discusses possible countermeasures against precision degradation of such system due to the thermal deformation, exploiting a finite- element model that is tuned to the experimental results. Though reconfigurable reflector systems inherently have the mismatch in the coefficients of thermal expansion among their structural members, the effect of the mismatch may be minimized by a proper combination of several materials. The prototype used in this study is designed as a preliminary model of a secondary mirror for future radio astronomy satellites.
AB - This study clarifies the effect of thermal deformation in the reconfigurable space reflector system, through a series of experiments in a thermostatic chamber using a prototype of reconfigurable space reflectors. This study then discusses possible countermeasures against precision degradation of such system due to the thermal deformation, exploiting a finite- element model that is tuned to the experimental results. Though reconfigurable reflector systems inherently have the mismatch in the coefficients of thermal expansion among their structural members, the effect of the mismatch may be minimized by a proper combination of several materials. The prototype used in this study is designed as a preliminary model of a secondary mirror for future radio astronomy satellites.
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UR - http://www.scopus.com/inward/citedby.url?scp=85088746220&partnerID=8YFLogxK
U2 - 10.2514/6.2015-1399
DO - 10.2514/6.2015-1399
M3 - Conference contribution
AN - SCOPUS:85088746220
T3 - 2nd AIAA Spacecraft Structures Conference
BT - 2nd AIAA Spacecraft Structures Conference
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 2nd AIAA Spacecraft Structures Conference 2015
Y2 - 5 January 2015 through 9 January 2015
ER -