Lightweight and optimization design of rectangular reflective mirror supported in centre

Bao Qihong; Sha Wei; Chen Changzheng; Ren Jianyue

doi:10.3788/IRLA201746.0718003

Volume 46 Issue 7

Aug. 2017

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Bao Qihong, Sha Wei, Chen Changzheng, Ren Jianyue. Lightweight and optimization design of rectangular reflective mirror supported in centre[J]. Infrared and Laser Engineering, 2017, 46(7): 718003-0718003(7). doi: 10.3788/IRLA201746.0718003

Citation:

Bao Qihong, Sha Wei, Chen Changzheng, Ren Jianyue. Lightweight and optimization design of rectangular reflective mirror supported in centre[J]. Infrared and Laser Engineering, 2017, 46(7): 718003-0718003(7). doi: 10.3788/IRLA201746.0718003

Lightweight and optimization design of rectangular reflective mirror supported in centre

doi: 10.3788/IRLA201746.0718003

1.
Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
2.
University of Chinese Academy of Sciences,Beijing 100049,China

Received Date: 2016-11-05
Rev Recd Date: 2016-12-03
Publish Date: 2017-07-25

Abstract

A lightweight and optimization design method for a medium aperture rectangular mirror supported in centre was proposed to meet the requirement of designing lighter and better satellite cameras. By choosing the method of rear support in centre by single point, the mass of both mirror and subassembly was decreased and the design of the support structure was simplified. By using multi-objective optimization design, the surface figure accuracy under the load case of gravity in Z-direction was improved. A flexible support structure dedicated to the mirror supported in centre was designed to overcome its shortcomings of low stiffness and low dynamic reliability. The integrated performance of the mirror was simulated and compared with that of the mirror mounted via rear three points. It shows that the mirror supported in centre has a lighter mass of 3.36 kg and the lightweight ratio is 87% compared with the solid mirror, and that the mass of the mirror subassembly is decreased 24% of the one supported by three points. The surface figure accuracy RMS of the mirror reaches respectively 2.2, 2.1 and 7.5 nm when gravity load is applied in the directions of X, Y and Z axes, which is better than that of the one supported by three points. Furthermore, the RMS is 2.8 nm when the mirror subassembly is under the load condition of uniform temperature rise of 4℃, which is far less than the requirement of RMS 12 nm. Otherwise, the first order natural frequency of the mirror subassembly is 135 Hz, and the maximum rigid body displacement is 3.96m. The proposed design method not only reduces the mass of the mirror with its support structure extremely, but also ensures the surface figure accuracy of the mirror and the dynamic and static rigid of the mirror subassembly requirement, provides a new approach to lightweight and optimization design for the same type space mirrors.
- rectangular reflective mirror,
- support in centre,
- multi-objective optimization,
- flexible support structure,
- contrastive analysis

References

[1]	Zhu Junqing, Sha Wei, Chen Changzheng, et al. Position layout of rear three point mounting for space rectangular mirror[J]. Optics and Precision Engineering, 2015, 23(9):2562-2569. (in Chinese)朱俊清, 沙巍, 陈长征, 等. 空间长条形反射镜背部三支撑点的设置[J]. 光学精密工程, 2015, 23(9):2562-2569.
[2]	Zhang Liang, An Yuan, Jin Guang. Optical design of the uncoaxial three-mirror system with wide field of view and long focal length[J]. Infrared and Laser Engineering, 2007, 36(2):278-280. (in Chinese)张亮, 安源, 金光. 大视场、长焦距离轴三反射镜光学系统的设计[J]. 红外与激光工程, 2007, 36(2):278-280.
[3]	Zhang Xuejun, Li Zhilai, Zhang Zhongyu. Space telescope aspherical mirror structure design based on SiC material[J]. Infrared and Laser Engineering, 2007, 36(5):577-582. (in Chinese)张学军, 李志来, 张忠玉. 基于SiC材料的空间相机非球面反射镜结构设计[J]. 红外与激光工程, 2007, 36(5):577-582.
[4]	Xin Hongwei, Guan Yingjun, Li Jinglin, et al. Design of support for large aperture rectangular mirror[J]. Optics and Precision Engineering, 2011, 19(7):1560-1568. (in Chinese)辛宏伟, 关英俊, 李景林, 等. 大孔径长条形反射镜支撑结构设计[J]. 光学精密工程, 2011, 19(7):1560-1568.
[5]	Zhan Yafeng, Ma Zhengxin, Cao Zhigang. Technology of modern micro satellite and its development direction[J]. Acta Electronica Sinia, 2000, 7:102-106. (in Chinese)詹亚锋, 马正新, 曹志刚. 现代微小卫星技术及发展趋势[J]. 电子学报, 2000, 7:102-106.
[6]	Chen Yonghe, Chen Hongda, Fu Yutian. Optical design of small-sized camera in visible for micro-satellite[J]. Infrared and Laser Engineering, 2015, 44(7):2087-2029. (in Chinese)陈永和, 陈洪达, 傅雨田. 适用于微小卫星平台的小型可见光相机设计[J]. 红外与激光工程, 2015, 44(7):2087-2029.
[7]	Ren Jianyue, Chen Changzheng, He Bin, et al. Application of SiC and SiC/Al to TMA optical remote sensor[J]. Optics and Precision Engineering, 2008, 16(12):2537-2543. (in Chinese)任建岳, 陈长征, 何斌, 等. SiC和SiC/Al在TMA空间遥感器中的应用[J]. 光学精密工程, 2008, 16(12):2537-2543.
[8]	Xu Hong, Guan Yingjun. Structural design of large aperture SiC mirror subassembly[J]. Infrared and Laser Engineering, 2014, 43(S):83-88. (in Chinese)徐宏,关英俊. 大口径SiC轻量化反射镜组件的结构设计[J]. 红外与激光工程, 2014, 43(S):83-88.
[9]	Qi Guang, Li Jinglin, Wang Shuxin, et al. Lightweight structure design for rectangular SiC space mirror[J]. Opto-Electronic Engineering, 2012, 39(2):43-47. (in Chinese)齐光, 李景林, 王书新, 等. 长条形SiC空间反射镜轻量化结构优化设计[J]. 光电工程, 2012, 39(2):43-47.
[10]	Liu Fuhe, Cheng Zhifeng, Shi Lei, et al. Design and analysis of supporting structure for rectangular mirror[J]. Infrared and Laser Engineering, 2015, 44(5):1512-1517. (in Chinese)刘福贺, 程志峰, 石磊, 等. 长条形反射镜支撑结构设计与分析[J]. 红外与激光工程, 2015, 44(5):1512-1517.
[11]	Li Zhilai, Xu Hong. Design of rectangular space mirror and its support structure[J]. Optics and Precision Engineering, 2011, 19(5):1039-1047. (in Chinese)李志来, 徐宏. 长条形空间反射镜及其支撑结构设计[J]. 光学精密工程, 2011, 19(5):1039-1047.
[12]	Yuan Jian, Ren Jianyue. Improvement and optimization of lightweight structure for SiC reflective mirror[J]. Acta Photonica Sinica, 2015, 44(8):0812004. (in Chinese)袁健, 任建岳. 碳化硅反射镜轻量化结构的改进与优化[J]. 光子学报, 2015, 44(8):0812004.
[13]	Xin Hongwei. Design and analysis on the flexible structure of the optical reflector[J]. OME Information, 2010, 27(7):51-55. (in Chinese)辛宏伟. 小型轻质长条反射镜挠性支撑方案研究[J]. 光机电信息, 2010, 27(7):51-55.
[14]	Liu Pai, Huang Qiaolin, Yang Jukui. Research on support structure between primary and secondary mirror in large-aperture and long-focal-length space camera[J]. Spacecraft Recovery Remote Sensing, 2014, 35(3):60-67. (in Chinese)刘湃, 黄巧林, 杨居奎. 大口径长焦距相机主次镜支撑结构方案初步研究[J]. 航天返回与遥感, 2014, 35(3):60-67.

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Lightweight and optimization design of rectangular reflective mirror supported in centre

1. Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;

2. University of Chinese Academy of Sciences,Beijing 100049,China

Received Date: 2016-11-05

Rev Recd Date: 2016-12-03

Publish Date: 2017-07-25

Key words:

Abstract: A lightweight and optimization design method for a medium aperture rectangular mirror supported in centre was proposed to meet the requirement of designing lighter and better satellite cameras. By choosing the method of rear support in centre by single point, the mass of both mirror and subassembly was decreased and the design of the support structure was simplified. By using multi-objective optimization design, the surface figure accuracy under the load case of gravity in Z-direction was improved. A flexible support structure dedicated to the mirror supported in centre was designed to overcome its shortcomings of low stiffness and low dynamic reliability. The integrated performance of the mirror was simulated and compared with that of the mirror mounted via rear three points. It shows that the mirror supported in centre has a lighter mass of 3.36 kg and the lightweight ratio is 87% compared with the solid mirror, and that the mass of the mirror subassembly is decreased 24% of the one supported by three points. The surface figure accuracy RMS of the mirror reaches respectively 2.2, 2.1 and 7.5 nm when gravity load is applied in the directions of X, Y and Z axes, which is better than that of the one supported by three points. Furthermore, the RMS is 2.8 nm when the mirror subassembly is under the load condition of uniform temperature rise of 4℃, which is far less than the requirement of RMS 12 nm. Otherwise, the first order natural frequency of the mirror subassembly is 135 Hz, and the maximum rigid body displacement is 3.96m. The proposed design method not only reduces the mass of the mirror with its support structure extremely, but also ensures the surface figure accuracy of the mirror and the dynamic and static rigid of the mirror subassembly requirement, provides a new approach to lightweight and optimization design for the same type space mirrors.

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Reference (14)

[1]	Zhu Junqing, Sha Wei, Chen Changzheng, et al. Position layout of rear three point mounting for space rectangular mirror[J]. Optics and Precision Engineering, 2015, 23(9):2562-2569. (in Chinese)朱俊清, 沙巍, 陈长征, 等. 空间长条形反射镜背部三支撑点的设置[J]. 光学精密工程, 2015, 23(9):2562-2569.
[2]	Zhang Liang, An Yuan, Jin Guang. Optical design of the uncoaxial three-mirror system with wide field of view and long focal length[J]. Infrared and Laser Engineering, 2007, 36(2):278-280. (in Chinese)张亮, 安源, 金光. 大视场、长焦距离轴三反射镜光学系统的设计[J]. 红外与激光工程, 2007, 36(2):278-280.
[3]	Zhang Xuejun, Li Zhilai, Zhang Zhongyu. Space telescope aspherical mirror structure design based on SiC material[J]. Infrared and Laser Engineering, 2007, 36(5):577-582. (in Chinese)张学军, 李志来, 张忠玉. 基于SiC材料的空间相机非球面反射镜结构设计[J]. 红外与激光工程, 2007, 36(5):577-582.
[4]	Xin Hongwei, Guan Yingjun, Li Jinglin, et al. Design of support for large aperture rectangular mirror[J]. Optics and Precision Engineering, 2011, 19(7):1560-1568. (in Chinese)辛宏伟, 关英俊, 李景林, 等. 大孔径长条形反射镜支撑结构设计[J]. 光学精密工程, 2011, 19(7):1560-1568.
[5]	Zhan Yafeng, Ma Zhengxin, Cao Zhigang. Technology of modern micro satellite and its development direction[J]. Acta Electronica Sinia, 2000, 7:102-106. (in Chinese)詹亚锋, 马正新, 曹志刚. 现代微小卫星技术及发展趋势[J]. 电子学报, 2000, 7:102-106.
[6]	Chen Yonghe, Chen Hongda, Fu Yutian. Optical design of small-sized camera in visible for micro-satellite[J]. Infrared and Laser Engineering, 2015, 44(7):2087-2029. (in Chinese)陈永和, 陈洪达, 傅雨田. 适用于微小卫星平台的小型可见光相机设计[J]. 红外与激光工程, 2015, 44(7):2087-2029.
[7]	Ren Jianyue, Chen Changzheng, He Bin, et al. Application of SiC and SiC/Al to TMA optical remote sensor[J]. Optics and Precision Engineering, 2008, 16(12):2537-2543. (in Chinese)任建岳, 陈长征, 何斌, 等. SiC和SiC/Al在TMA空间遥感器中的应用[J]. 光学精密工程, 2008, 16(12):2537-2543.
[8]	Xu Hong, Guan Yingjun. Structural design of large aperture SiC mirror subassembly[J]. Infrared and Laser Engineering, 2014, 43(S):83-88. (in Chinese)徐宏,关英俊. 大口径SiC轻量化反射镜组件的结构设计[J]. 红外与激光工程, 2014, 43(S):83-88.
[9]	Qi Guang, Li Jinglin, Wang Shuxin, et al. Lightweight structure design for rectangular SiC space mirror[J]. Opto-Electronic Engineering, 2012, 39(2):43-47. (in Chinese)齐光, 李景林, 王书新, 等. 长条形SiC空间反射镜轻量化结构优化设计[J]. 光电工程, 2012, 39(2):43-47.
[10]	Liu Fuhe, Cheng Zhifeng, Shi Lei, et al. Design and analysis of supporting structure for rectangular mirror[J]. Infrared and Laser Engineering, 2015, 44(5):1512-1517. (in Chinese)刘福贺, 程志峰, 石磊, 等. 长条形反射镜支撑结构设计与分析[J]. 红外与激光工程, 2015, 44(5):1512-1517.
[11]	Li Zhilai, Xu Hong. Design of rectangular space mirror and its support structure[J]. Optics and Precision Engineering, 2011, 19(5):1039-1047. (in Chinese)李志来, 徐宏. 长条形空间反射镜及其支撑结构设计[J]. 光学精密工程, 2011, 19(5):1039-1047.
[12]	Yuan Jian, Ren Jianyue. Improvement and optimization of lightweight structure for SiC reflective mirror[J]. Acta Photonica Sinica, 2015, 44(8):0812004. (in Chinese)袁健, 任建岳. 碳化硅反射镜轻量化结构的改进与优化[J]. 光子学报, 2015, 44(8):0812004.
[13]	Xin Hongwei. Design and analysis on the flexible structure of the optical reflector[J]. OME Information, 2010, 27(7):51-55. (in Chinese)辛宏伟. 小型轻质长条反射镜挠性支撑方案研究[J]. 光机电信息, 2010, 27(7):51-55.
[14]	Liu Pai, Huang Qiaolin, Yang Jukui. Research on support structure between primary and secondary mirror in large-aperture and long-focal-length space camera[J]. Spacecraft Recovery Remote Sensing, 2014, 35(3):60-67. (in Chinese)刘湃, 黄巧林, 杨居奎. 大口径长焦距相机主次镜支撑结构方案初步研究[J]. 航天返回与遥感, 2014, 35(3):60-67.

Lightweight and optimization design of rectangular reflective mirror supported in centre

doi: 10.3788/IRLA201746.0718003

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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