中国空间科学技术

中国空间科学技术 ›› 2024, Vol. 44 ›› Issue (2): 30-39.doi: 10.16708/j.cnki.1000-758X.2024.0019

• 可展开空间结构专栏 • 上一篇    下一篇

基于充气薄膜的可展开帆板结构设计

张元勋，徐莉萍，张晓敏，黄镐   

  1. 1 重庆大学 航空航天学院，重庆400030
    2 北京紫微宇通科技有限公司，北京100080
  • 出版日期:2024-04-25 发布日期:2024-04-09

Structure design of deployable panels based on inflatable film

ZHANG Yuanxun，XU Liping，ZHANG Xiaomin，HUANG Gao   

  1. 1 School of Aerospace Engineering，Chongqing University，Chongqing 400030，China
    2 Beijing Azspace Technology Co.，Ltd.，Beijing 100080，China
  • Published:2024-04-25 Online:2024-04-09

PDF (PC)

128

摘要： 充气薄膜结构具有质量轻、收纳比高的优势。通过理论分析及实验验证的方法，得到了充气薄膜管承载力矩与充气内压、管道内径、展开程度之间的映射关系。进一步通过“厚度包边”法处理二级展开帆板的厚度问题，设计了转动锁定、转动滑移锁定、搭接锁定连接结构，提出薄膜管驱动的二级可展开矩形帆板、圆形帆板以及百叶窗式矩形帆板三种大尺度可展开帆板结构形式，并进行展开状态的模态仿真，对比其模态振型。本设计可为大尺度充气可展开结构形式提供参考。

关键词: 薄膜展开, 承载力矩, 展开锁定, 折展机构

Abstract: The deployable membrane structure has the advantages of light weight and high storage ratio.Through theoretical analysis and experimental verification，the mapping relationship between bending moment and internal pressure，radius and expansion degree of inflatable film tube was obtained.Furthermore，the thick plate problem of the two-stage deployable panels was solved with the method of "thick edge wrapping".The rotational lock，rotational slip lock and lap lock connection structures were designed.Three kinds of large-scale deployable panels structures，namely two-stage deployable rectangular panels，circular panels and shutter-shaped rectangular panels，were proposed，and the modal simulation of the deployable state was carried out to compare the modal shapes.This paper can provide a reference for large scale inflatable structure.

Key words: deployment of thin film, load torque, deploy and lock, deployable mechanism