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	Design of deployable biaxial pointing mechanism for spaceborne dual-reflector offset antenna
	K.-C. Yin; Q. Yong; Y.-L. Huo; X.-G. Xie and X.-D. Li
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2021
卷号	29期号:3页码:582-591
ISSN号	1004924X
DOI	10.37188/OPE.2020.0548
英文摘要	To realize the application of dual-reflector offset antennas in aerospace systems, a design scheme for a deployable biaxial pointing mechanism for a spaceborne double reflector offset antenna based on a connecting rod connection is proposed, a principle prototype is manufactured, and an experimental verification is conducted. This study first analyzes and compares the characteristics of different configurations of traditional antenna pointing mechanisms according to the characteristics of the dual-reflector offset antenna and the special requirements of aerospace systems, and it helps realize the structural design of the dual-reflector offset antenna pointing mechanism. Then, the finite-element method is used to analyze the dynamics of the pointing mechanism, and further theoretical analysis and optimization design are carried out for the key components, such as the biaxial connecting rod and locking device. Finally, according to the design plan, a prototype of the pointing mechanism is manufactured, then the vibration test and the measurement of the two-axis angle accuracy after the vibration test are carried out. The test results demonstrate that the first-order natural frequency of the pointing mechanism is 103 Hz and the angle deviation between the two axes after the vibration test is 21, which meets the design requirements of the pointing mechanism, and the structural design is reasonable and feasible. 2021, Science Press. All right reserved.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/65156]
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	K.-C. Yin,Q. Yong,Y.-L. Huo,et al. Design of deployable biaxial pointing mechanism for spaceborne dual-reflector offset antenna[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2021,29(3):582-591.
APA	K.-C. Yin,Q. Yong,Y.-L. Huo,&X.-G. Xie and X.-D. Li.(2021).Design of deployable biaxial pointing mechanism for spaceborne dual-reflector offset antenna.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,29(3),582-591.
MLA	K.-C. Yin,et al."Design of deployable biaxial pointing mechanism for spaceborne dual-reflector offset antenna".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 29.3(2021):582-591.

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