基于充气薄膜的可展开帆板结构设计
Structure design of deployable panels based on inflatable film
张元勋 1徐莉萍 1张晓敏 2黄镐2
作者信息
- 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
- 折叠
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.
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.
关键词
薄膜展开/承载力矩/展开锁定/折展机构Key words
deployment of thin film/load torque/deploy and lock/deployable mechanism引用本文复制引用
基金项目
国家自然科学基金青年基金(51705045)
出版年
2024
国家科技期刊平台
NSTL
万方数据