Spacecraft Recovery & Remote Sensing, Volume. 45, Issue 3, 19(2024)
Design and Test for a Cryogenic Beamsplitter Support Structure with Large Aspect Ratio
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Table 1. Material properties
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结构 材料 密度/（kg/m3） 弹性模量/GPa 泊松比 MCTE (293 K到133K)/×10−6K−1 分光片 锗（Ge） 5 327 103 0.28 4.9 分光片框及柔性结构 钛合金（TC4） 4 450 113 0.34 8 补偿块 铝合金（2A12） 2 780 72 0.32 22 胶粘剂 环氧胶（2216） 1 500 1.8 0.45 60 焦面框 碳碳化硅（C/SiC） 2 000 110 0.2 2
Table 2. Modal analysis results
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模态 一阶 二阶 三阶 频率/Hz 191 352.4 396.3 振型 分光片Z向平移 分光片X向平移 分光片Y向平移
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Weiming TONG, Yue MA, Junru SONG, Libing JIN, Minlong LIAN. Design and Test for a Cryogenic Beamsplitter Support Structure with Large Aspect Ratio[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(3): 19
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Received: Aug. 7, 2023
Accepted: --
Published Online: Oct. 30, 2024
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