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中国科学院 长春光学精密机械与物理研究所,吉林 长春,中国,130033
收稿日期:2012-03-12,
修回日期:2012-05-18,
纸质出版日期:2012-09-10
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张雷, 姚劲松, 贾学志, 安源, 金光. 同轴空间相机碳纤维复合材料桁架结构的研制[J]. 光学精密工程, 2012,20(9): 1967-1973
ZHANG Lei, YAO Jin-song, JIA Xue-zhi, AN Yuan, JIN Guang. Development of trusses made of carbon fiber composites for coaxial space remote sensors[J]. Editorial Office of Optics and Precision Engineering, 2012,20(9): 1967-1973
张雷, 姚劲松, 贾学志, 安源, 金光. 同轴空间相机碳纤维复合材料桁架结构的研制[J]. 光学精密工程, 2012,20(9): 1967-1973 DOI: 10.3788/OPE.20122009.1967.
ZHANG Lei, YAO Jin-song, JIA Xue-zhi, AN Yuan, JIN Guang. Development of trusses made of carbon fiber composites for coaxial space remote sensors[J]. Editorial Office of Optics and Precision Engineering, 2012,20(9): 1967-1973 DOI: 10.3788/OPE.20122009.1967.
从某空间相机的任务需求出发
提出了采用基于碳纤维复合材料的高精密桁架作为主次镜间的支撑结构
完成了相关设计和工程分析
并在加工制造过程中
对相关工艺流程进行了探索。确定了相关结构的制造工艺流程
实现了该结构的高精密加工。最后
深入开展了相关振动、力学和温度稳定性试验
搭建了基于光学测量方法的自动测试平台
排除了人为因素的影响
实现了快速多次自动测量
从而提高了测试精度。分析和试验结果表明:所研制的大型碳纤维桁架质量仅为13 kg
基频达到119 Hz
在重力、10 ℃温升和4 ℃温差条件下的变形均小于4
各组件
864 mm安装接口的平面度优于8 m
同时实现了高度轻量化和高稳定性。该桁架已成功应用于某空间相机中
提出的设计、试验方案和工艺流程可以作为其它同型空间相机结构设计的技术参考。
According to the requirements of a coaxial space remote sensors
a high-precision truss made of carbon fiber composites was developed to be as the supporting structure between primary and secondary mirrors
and its engineering applications were analyzed. In the manufacturing process
the relevant technological process was explored and the high-precision machining of the structure was realized. Finally
the vibration test
mechanical test and temperature stability test were performed. Based on the optical measurement method
an automatic testing platform was set up and the measurement precision was improved by rapidly repeated measurement and the elimination of artificial factors. The analysis and test results indicate that the high-precision truss only weights 13 kg
the first natural frequency is 119 Hz
and the deformations are less than 4 under the conditions of gravity
10 ℃ temperature rise and 4℃ temperature difference. Furthermore
the flatness of mounting interfaces for each component is less than 8 m in the high lightweight and high stability. The truss has been successfully applied in a space remote sensor
and the design scheme
test scheme and the manufacturing process discussed in this paper can be used as a reference for other coaxial space remote sensors with the same type.
李威,刘宏伟,郭权锋,等. 空间相机主次镜间的薄壁和支杆组合支撑结构[J]. 光学 精密工程,2010,18(12): 2633-2641. LI W, LIU H W, GUO Q F et al.., Combined supporting structure of thin wall joint cylinder and supporting bar between primary mirror and second mirror in space camera [J]. Opt. Precision Eng., 2010, 18(12): 2633-2641. (in Chinese)[2] FORMAN S E. EO-1 advanced land imager (ALI) technology transfer forum. 2001,9.[3] 陈志平,陈志远,杨世模. 空间太阳望远镜主桁架的模态分析与试验[J]. 光电工程,2004,31(12): 1-3. CHEN ZH P, CHEN ZH Y, YANG SH M. Modal analysis and experiment on the main truss of Space Solar Telescope [J]. Opto-Electronic Engineering, 2004, 31(12): 1-3. (in Chinese)[4] 贾学志,金光,张雷. 空间相机外遮光罩结构设计与优化[J]. 光学 精密工程,2008,16(8): 1560-1565. JIA X ZH, JIN G, ZHANG L. Design and optimization of lightweight outer baffle for space camera [J] Opt. Precision Eng., 2008, 16(8): 1560-1565.(in Chinese)[5] 李威,刘宏伟. 空间光学遥感器中碳纤维复合材料精密支撑构件的结构稳定性[J]. 光学 精密工程,2008,16(11): 2173-2179. LI W, LIU H W. Structure stability of precision component made of carbon fiber composite in space optical remote sensor [J]. Opt. Precision Eng., 2008, 16(11): 2173-2179. (in Chinese)[6] 沃西源. 国外先进复合材料发展及其在卫星结构中的应用[J]. 航天返回与遥感, 1994, 15(3): 53-62. WO X Y. Applications of advanced composites in foreign space structure [J]. Spacecraft Recovery & Remote Sensing, 1994, 15(3): 53-62. (in Chinese)[7] CONNELL S J, ABUSAFIEH A. Lightweight space mirrors from carbon fiber composites [J]. Sampe Journal, 2002, 38(4): 46-55.[8] ROBERT C R. CFRP composites for optics and structures in telescope applications [J]. SPIE, 2543: 154-161.[9] 林再文,刘永琪,梁岩,等. 碳纤维增强复合材料在空间光学结构中的应用[J]. 光学 精密工程,2007,15(8): 1181-1185. LIN Z W, LIU Y Q, LIANG Y, et al.. Application of carbon fiber reinforced composite to space optical structure [J]. Opt. Precision Eng., 2007, 15(8): 1181-1185. (in Chinese)[10] DENNIS G, JIM B, JOE D. Overview of the optical design and performance of the high resolution science imaging experiment (HIRISE) [J]. SPIE, 2005:0K1-0K10.
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