星载可展开结构是卫星结构的重要组成部分,是直接执行卫星功能的重要平台。随着空间技术的发展,大尺寸、轻重量、高精度、高收纳率的可展机构是目前空间结构的发展方向。本文主要针对一种新型的可展开天线——环肋可展开天线,对其背架环肋可展开结构的关节进行了具体设计研究。基于星载可展开结构设计的特点,本文首先对国内外各种可展开结构进行概述和分类,在分析总结的基础上,对环肋可展开天线结构的关节进行具体设计。关节是整个环肋可展开结构的关键,本论文分别对关节的连接传动方式、驱动方式等进行了相关的设计研究。本文为口径为3m的环肋可展开结构模型进行了具体设计,包括环关节、肋关节、环杆和肋杆等结构。最后对以上研究工作进行了总结,提出了存在的问题和下一步工作。8098
关键字 : 可展开天线 环肋可展开结构 关节设计Title Title Title Title Satellite antenna structure design
Abstract Abstract Abstract Abstract
Space-borne deployable mechanism is an important part of the satellites
which is a substantial platform to carry out the satellites ’ function.
With the development of aerospace technology,The deployable truss in big
size,high accuracy, light-weight is the currency of space structures.In
this paper,the research object is the back frame of a new type of deployable
antenna — hoop-rib deployable structure.The details of the joints of
hoop-rib deployable structure are designed and studied.
At first,this thesis reviews the developing processes,study and
application, and development trend of space-borne deployable construction
features,and compared them in various manners.Based on this , t he details
of the joints of hoop-rib deployable structure are designed and studied.The
joints are the key to the hoop-rib deployable structure. In this paper,
the design details of joints are researched respectively, including
transmission mode, drive mode, positioning and locking mode.In this paper,
the loop- rib deployable structure model whose diameter is 3-meter
is thoroughly designed, including loop-joints, rib joints, etc..
At the end of this dissertation some conclusions were reached and the
problems that should be studied further were put forward.
Keywords: deployable antenna hoop-rib deployable structure joint
design目 次
1 绪论 1
1.1 引言 1
1.2 可展结构概念 1
1.3 可展卫星天线结构形式 2
1.4 国内外可展开天线研究现状 6
1.5 本文主要工作 8
2 环肋可展开天线的结构简介 9
2.1 引言 9
2.2 环肋可展开结构组成 9
2.3 环肋可展开结构的展开过程 11
2.4 本章小结 12
3 环肋可展开结构关节的设计分析 13
3.1 引言 13
3.2 关节连接方式 13
3.3 展开驱动设计 17
3.4 本章小结 19
4 3m 环肋可展开结构的设计 20
4.1 引言 20
4.2 可展开天线结构设计基础 20
4.3 3m 可展开结构设计 22
4.4 本章小结 33
5 总结与期望 34
5.1 本文的主要工作 34
5.2 存在的问题和不足 34
5.3 未来期望 35
致谢 35
参考文献 36
附件 38
1 1 1 1 绪论绪论绪论绪论
本章主要介绍可展结构的概念、发展历史以及国内外发展现状,通过查阅大量资
料总结相关文献,明确研究背景和指明研究目的。
1 1 1 1 . . . . 1 1 1 1 引言引言引言引言 卫星天线结构设计+文献综述:http://www.751com.cn/jixie/lunwen_6312.html