Mechanical design of zoom optical system for deep space exploration

doi:10.1117/12.2504761

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 月球与深空探测技术研究室

	Mechanical design of zoom optical system for deep space exploration
	Qian, Chongsen 1,2; Li, Fu1 ; Yang, Jianfeng1 ; Sun, Yi 1,2; Yang, Wenqiang 1,2
	2019
会议日期	2018-06-26
会议地点	Chengdu, China
卷号	10837
DOI	10.1117/12.2504761
英文摘要	As one of the largest aerospace countries in the world, China's National Space Administration has officially launched the China Mars Exploration Project in 2016. The zoom lens, in contrast to a fixed focal length lens, has a continuously variable focal length that provides more intuitive information for probing activities. Therefore, it is particularly important to design a zoom lens and use it as a Mars probe imaging payload. In this paper, a zoom system is designed for the climatic environment of Mars and the condition requirements of the lander during transportation work. At the same time, different types of structures were discussed. Finally, a cam rotation mechanism was used in the zoom mechanism. Examining the complexity of the space thermal environment, the thermal characteristics of the system structure will have a great impact on the system performance. To prevent the adverse effects of different thermal expansion coefficients on the system over a wide operating temperature range, select the appropriate materials and the overall structure It is very important to carry out finite element analysis. In this paper, thermal deformation analysis of Aluminum Alloys, Titanium Alloys and Invar Steel materials was performed. The results show that the thermal deformation of Aluminum Alloy materials is maximum at the working temperature of -55°C to +55°C, the thermal deformation of the Aluminum Alloy material is the largest, and the titanium alloy and Invar Steel are relatively small. Finally, the axial displacement is analyzed. The analysis results show that Invar Steel material has the smallest axial displacement. However, considering the weight reduction, it has met the rocket launch requirements. Finally, titanium alloy material is used as the system structural material, and the cam curve is compensated according to the axial displacement. © 2019 SPIE.
产权排序	1
会议录	9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
会议录出版者	SPIE
语种	英语
ISSN号	0277786X;1996756X
ISBN号	9781510623163
内容类型	会议论文
源URL	[http://ir.opt.ac.cn/handle/181661/31231]
专题	西安光学精密机械研究所_月球与深空探测技术研究室
通讯作者	Li, Fu
作者单位	1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; 2.University of Chinese Academy of Sciences, Beijing; 100039, China
推荐引用方式 GB/T 7714	Qian, Chongsen,Li, Fu,Yang, Jianfeng,et al. Mechanical design of zoom optical system for deep space exploration[C]. 见:. Chengdu, China. 2018-06-26.