Parallel adjustment mechanism for large aperture telescope based on flexible hinges

doi:10.37188/OPE.20233103.0352

CIOMP OpenIR

	Parallel adjustment mechanism for large aperture telescope based on flexible hinges
	Y. Yu, X. Wang, Z. Xu, C. Han, Y. Cao and J. Wang
	2023
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	31 期号:3 页码:352-362
摘要	To reduce the effects of gravity deformation on the imaging quality of large aperture ground-based telescopes during optical tracking, a parallel adjustment mechanism with high lateral stiffness and submicron accuracy based on flexible hinges is developed. First, a system of parallel mechanism is introduced and a two-degree-of-freedom flexible hinge is designed according to specific technical indicators. Second, equivalent kinematics and stiffness models of the flexible hinge parallel mechanism are developed. Subsequently, a rigid-flexible coupling kinematics simulation system of the parallel mechanism is established, and the effects of the flexible hinge on the accuracy of the mechanism are analyzed. Finally, an experimental test system is built to verify the rationality of the flexible hinge design and the accuracy of the rigid-flexible coupling kinematics analysis of the parallel adjustment platform. Simulation and test results show that the rotational stiffness error of the flexible hinge is controlled to within 3. 54%, the motion accuracy of the small displacement (micrometer/angular second) reaches the sub-micrometer level, and the motion accuracy of the large displacement (millimeter/degree) is controlled to within the micrometer level as compared with the simulation results. The lateral stiffness of the mechanism is greater than 60 N/μm and can thus meet the requirements of ground-based telescope optical imaging. © 2023 Chinese Academy of Sciences. All rights reserved.
DOI	10.37188/OPE.20233103.0352
URL	查看原文
收录类别	ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68129
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	Y. Yu, X. Wang, Z. Xu, C. Han, Y. Cao and J. Wang. Parallel adjustment mechanism for large aperture telescope based on flexible hinges[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2023,31(3):352-362.
APA	Y. Yu, X. Wang, Z. Xu, C. Han, Y. Cao and J. Wang.(2023).Parallel adjustment mechanism for large aperture telescope based on flexible hinges.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,31(3),352-362.
MLA	Y. Yu, X. Wang, Z. Xu, C. Han, Y. Cao and J. Wang."Parallel adjustment mechanism for large aperture telescope based on flexible hinges".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 31.3(2023):352-362.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Parallel adjustment （2451KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载