大型空间红外相机多反光学系统桁架杆框架的设计

翟岩岩

doi:10.3788/OPE.20172511.2923

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大型空间红外相机多反光学系统桁架杆框架的设计

微纳技术与精密机械 | 更新时间：2020-07-07

- 大型空间红外相机多反光学系统桁架杆框架的设计
- Design of truss framework of multi-mirror optical system for large-scale space infrared camera
- 光学精密工程 2017年25卷第11期页码：2923-2930
- 作者机构：
  
  1.长春理工大学, 吉林长春 130022
  2.中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
  
  [ "翟岩(1974-), 男, 吉林长春人, 副研究员, 1997年于长春光学精密机械学院获得学士学位, 2012年于吉林大学获得硕士学位, 主要从事空间遥感器总体设计的研究。E-mail:zhaiy163@163.com" ]
- 基金信息：
  
  国家自然科学基金资助项目(61405191)
- DOI：10.3788/OPE.20172511.2923
  中图分类号： V447.3;V416
- 收稿日期：2017-04-13，
  
  录用日期：2017-6-10，
  
  纸质出版日期：2017-11-25
- 稿件说明：
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翟岩岩. 大型空间红外相机多反光学系统桁架杆框架的设计[J]. 光学精密工程, 2017,25(11):2923-2930.

Yan ZHAI. Design of truss framework of multi-mirror optical system for large-scale space infrared camera[J]. Optics and precision engineering, 2017, 25(11): 2923-2930.
翟岩岩. 大型空间红外相机多反光学系统桁架杆框架的设计[J]. 光学精密工程, 2017,25(11):2923-2930. DOI： 10.3788/OPE.20172511.2923.

Yan ZHAI. Design of truss framework of multi-mirror optical system for large-scale space infrared camera[J]. Optics and precision engineering, 2017, 25(11): 2923-2930. DOI： 10.3788/OPE.20172511.2923.

摘要

针对大型空间红外相机对复杂支撑功能且重量小、刚度高框架的需求，本文设计了一个全部由桁架杆互相支撑形成的框架，并通过结构分析、工艺试验和力学试验验证了框架的可行性和可靠性。该框架由58根碳纤维支撑杆和21个接头组合形成相机的主支撑结构，可支撑多个周向分布的光学组件，且满足框架总质量不超过55 kg的要求。介绍了框架的装调和胶接方法和步骤，进行了有限元分析和力学试验，验证了三角形封闭的桁架杆结构在黏接强度降低的情况下，仍能够在相机受力状态下具有足够的安全裕度。力学试验得到框架的一阶谐振频率为90.4 Hz，满足一阶谐振频率不低于60 Hz的要求，与有限元分析结果相符。

Abstract

To meet the requirements of a large-scale space infrared camera for a lighter weight and higher rigidity framework with complex support function

a framework entirely formed by trusses was designed.Then

the feasibility and reliability of the frame were demonstrated by structure analysis

technological test and mechanical test. The framework was combined by 58 carbon fiber struts and 21 joints to form the main support structure of the camera. It could support most of optical modules in circumference distribution and could meet the weight requirement less than 55 kg. The methods and steps for gluing the subassemblies were described particularly

then the finite element analysis and mechanical experiment were used to verify that the triangle enclosed truss structure in stress state could offer an adequate safety margin even if the adhesive strength was reduced. Mechanical experiment results show that the basic frequency of the framework is 90.4 Hz

which is consistent with the results of finite element analysis and higher than the limited frequency of 60 Hz.

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references

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