Design of a 2 m Primary Mirror Assembly Considering Fatigue Characteristics

doi:10.3390/app122010326

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	Design of a 2 m Primary Mirror Assembly Considering Fatigue Characteristics
	J. K. Xu; W. Li; K. J. Wang; Q. Hao and G. Y. Lin
	2022
发表期刊	Applied Sciences-Basel
卷号	12 期号:20 页码:17
摘要	The design requirements of a 2 m mirror assembly installed on a large space optical remote sensor are investigated in this study. The mirror body and rigid connectors are designed using topology and size optimization methods. The initial design scheme of flexible supports is then proposed through an in-depth exploration of fatigue failure mechanism caused by impacts of size parameters, thermal-mechanical vibration, and surface abrasion. The comprehensive analysis mode of the flexible support structure is established with the help of finite element and fatigue analysis software programs. The designed mirror surface error under composited force is 5.6 nm, first natural vibration mode is 119.16 Hz, and fatigue life synthesizing thermal-mechanical vibration is about 21,790,000 cycles, thereby meeting the design requirements. The first natural vibration mode, acceleration response, and stress responses of sine and random vibration are verified with experiments, and the findings are compared with the theoretical analysis results. The analysis mode can successfully and significantly improve the reliability of the mirror assembly and help optimize the design of flexible supports.
DOI	10.3390/app122010326
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66531
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. K. Xu,W. Li,K. J. Wang,et al. Design of a 2 m Primary Mirror Assembly Considering Fatigue Characteristics[J]. Applied Sciences-Basel,2022,12(20):17.
APA	J. K. Xu,W. Li,K. J. Wang,&Q. Hao and G. Y. Lin.(2022).Design of a 2 m Primary Mirror Assembly Considering Fatigue Characteristics.Applied Sciences-Basel,12(20),17.
MLA	J. K. Xu,et al."Design of a 2 m Primary Mirror Assembly Considering Fatigue Characteristics".Applied Sciences-Basel 12.20(2022):17.

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