A Focusing Mechanism Based on Flexible Hinges for Space Telescope | |
Ma, Xiaozhe1,2; Li, Chuang1; Cheng, Penghui1,2; Hu, Bin1 | |
2019 | |
会议名称 | Conference on Pacific-Rim Laser Damage - Optical Materials for High-Power Lasers |
会议录名称 | PACIFIC-RIM LASER DAMAGE 2019: OPTICAL MATERIALS FOR HIGH-POWER LASERS |
卷号 | 11063 |
会议日期 | 2019-05-19 |
会议地点 | Qingdao, PEOPLES R CHINA |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
产权排序 | 1 |
摘要 | In this paper, a new type of focusing mechanism for space telescope is designed to compensate defocusing caused by alteration of space condition in orbit. The focusing mechanism is driven by a stepping motor and a worm gear reducer, transmitted by a ball screw and output by a flexible hinge lever. It has advantages of low mass, small overall size and high accuracy that is better than 1 mu m. As one of main parts of focusing mechanism, the flexible hinge lever is mounted on a fixed bracket and connected to the nuts of ball screw kinematic pair which has mechanical end stops. The focusing shaft attached to the flexible hinge lever is guided by two thin film boards to ensure the precise displacement along optical axis direction. The secondary mirror frame is connected to the shaft to complete focusing. Firstly, the focusing mechanism is designed. Then a modal analysis with finite element method for the mechanism is completed. The results show that the dynamic stiffness is high enough and meets the requirement. |
关键词 | Focusing mechanism Structure design Worm gear reducer Flexible hinge Modal analysis |
作者部门 | 空间光学技术研究室 |
DOI | 10.1117/12.2539681 |
收录类别 | EI ; CPCI |
ISBN号 | 978-1-5106-2817-5 |
语种 | 英语 |
ISSN号 | 0277-786X;1996-756X |
WOS记录号 | WOS:000511186900016 |
EI入藏号 | 20195207919108 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/93237 |
专题 | 空间光学技术研究室 |
通讯作者 | Li, Chuang |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, 17 Xinxi Rd, Xian 710119, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, Xiaozhe,Li, Chuang,Cheng, Penghui,et al. A Focusing Mechanism Based on Flexible Hinges for Space Telescope[C]:SPIE-INT SOC OPTICAL ENGINEERING,2019. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
A Focusing Mechanism(558KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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