Experimental study of reflector shape control under various thermal conditions

Akiya Inagaki; Hiraku Sakamoto; Hiroaki Tanaka; Kosei Ishimura; Masaaki Okuma

doi:10.2514/6.2015-1399

Experimental study of reflector shape control under various thermal conditions

Akiya Inagaki, Hiraku Sakamoto, Hiroaki Tanaka, Kosei Ishimura, Masaaki Okuma

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	2nd AIAA Spacecraft Structures Conference
Publisher	American Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)	9781624103452
DOIs	https://doi.org/10.2514/6.2015-1399
Publication status	Published - 2015
Externally published	Yes
Event	2nd AIAA Spacecraft Structures Conference 2015 - Kissimmee, United States Duration: 2015 Jan 5 → 2015 Jan 9

Publication series

Name	2nd AIAA Spacecraft Structures Conference

Other

Other	2nd AIAA Spacecraft Structures Conference 2015
Country/Territory	United States
City	Kissimmee
Period	15/1/5 → 15/1/9

ASJC Scopus subject areas

Aerospace Engineering
Electrical and Electronic Engineering
Mechanical Engineering
Computer Science Applications

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10.2514/6.2015-1399

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Experimental study of reflector shape control under various thermal conditions. / Inagaki, Akiya; Sakamoto, Hiraku; Tanaka, Hiroaki et al.
2nd AIAA Spacecraft Structures Conference. American Institute of Aeronautics and Astronautics Inc., 2015. (2nd AIAA Spacecraft Structures Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Inagaki, A, Sakamoto, H, Tanaka, H, Ishimura, K & Okuma, M 2015, Experimental study of reflector shape control under various thermal conditions. in 2nd AIAA Spacecraft Structures Conference. 2nd AIAA Spacecraft Structures Conference, American Institute of Aeronautics and Astronautics Inc., 2nd AIAA Spacecraft Structures Conference 2015, Kissimmee, United States, 15/1/5. https://doi.org/10.2514/6.2015-1399

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author = "Akiya Inagaki and Hiraku Sakamoto and Hiroaki Tanaka and Kosei Ishimura and Masaaki Okuma",

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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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Y2 - 5 January 2015 through 9 January 2015

ER -

Experimental study of reflector shape control under various thermal conditions

Abstract

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