Design and optimization of carbon fiber framework for space camera

Shuai YAHG; Wei SHA; Chang-zheng CHEN; Xing-xiang ZHANG; Jian-yue REN

doi:10.3788/OPE.20172503.0697

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Design and optimization of carbon fiber framework for space camera

更新时间：2020-07-07

- Design and optimization of carbon fiber framework for space camera
- Optics and Precision Engineering Vol. 25, Issue 3, Pages: 697-705(2017)
- 作者机构：
  
  1.中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2.中国科学院大学, 北京 100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20172503.0697
  CLC： V447.3
- Received：10 August 2016，
  
  Accepted：23 September 2016，
  
  Published：25 March 2017
- 稿件说明：
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Shuai YAHG, Wei SHA, Chang-zheng CHEN, et al. Design and optimization of carbon fiber framework for space camera[J]. Optics and precision engineering, 2017, 25(3): 697-705.
DOI：

Shuai YAHG, Wei SHA, Chang-zheng CHEN, et al. Design and optimization of carbon fiber framework for space camera[J]. Optics and precision engineering, 2017, 25(3): 697-705. DOI： 10.3788/OPE.20172503.0697.

摘要

设计了一个应用于轻小型空间相机的碳纤维框架。根据光学系统中各光学元件的空间分布特点，通过比较选择结构性能和工艺性能优异的M40J碳纤维复合材料完成了相机框架的结构设计，并使用TC4预埋镶嵌的方法解决了碳纤维框架接口精度低的问题。对碳纤维框架进行区域划分，采用集成仿真与优化设计方法、遗传算法全局寻优与单纯型下山法局部寻优的组合优化策略对碳纤维框架各区域结构参数进行优化设计。经过优化，碳纤维框架包含TC4预埋件的总质量为15.6 kg，仅占相机整机质量的18.4%，相机的一阶频率达104.8 Hz。最后通过力学环境试验得到相机整机一阶频率为102 Hz，与仿真结果相符，进一步验证了设计的合理性和正确性。文中提出的碳纤维框架方案对轻小型空间相机设计有一定的借鉴意义。文中所采用的优化方法可广泛应用于空间相机光机结构设计中，能大幅度提高设计效率，缩短研制周期。

Abstract

In this paper

a CFC framework applied to light-small space camera was designed. Selected

through comparison

the M40J carbon fiber composite with excellent structural performance and processing property to complete structural design of the camera framework based on spatial distribution characteristics of each optical element in the optical system

and then used TC4 embedded parts to solve the problem of low interface accuracy of CFC framework; carried out regional division in the CFC framework

and then conducted parameter optimization design in each regional structure of the framework combining global optimization by integrated optimization method

optimization design method and genetic algorithm with local optimization by downhill method. After such optimization

the CFC framework was 15.6 kg

accounting for 18.4% of the entire camera

with a first-order frequency of 104.8 Hz. Finally

a mechanical environment test was conducted

obtaining a first-order frequency of the entire camera consistent with the simulation results

namely 102 Hz

which further verified the reasonability and correctness of the design. CFC framework put forward in this paper is of certain reference significance to light-small space camera design

and the optimization method adopted herein

which is widely applied to optical-mechanical structure design of space camera

can substantially improve the design efficiency and shorten the development cycle.

关键词

Keywords

references

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