Thermal Distortion of a Modular Structure for Use a Large Reflector.

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  • 宇宙用大型反射鏡のモジュール熱変形評価
  • ウチュウヨウ オオガタ ハンシャキョウ ノ モジュール ネツ ヘンケイ ヒョウカ

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Abstract

Thermal distortion of a large deployable reflector, for use on board a satellite, was evaluated using an artificial environmental chamber. The large deployable reflector, which is 15 m in diameters, was developed based on a modular concept in which the structure consists of several basic modules about 5 m in diameter. Each basic module consists of a mesh surface, a cable network, and a truss structure. The mesh used for the reflector surface reduces the weight, and the cable network is formed so that the mesh surface is parabolic in shape. The truss structure maintains the length of cable and the form of the mesh surface.

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