• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2019, Vol. 55 ›› Issue (21): 1-10.doi: 10.3901/JME.2019.21.001

• 机构学及机器人 •    下一篇

SIASAIL-Ⅰ太阳帆展开机构

刘金国1,2, 赵鹏远1,2,3, 吴晨晨1,2, 秦栋1,2, 陈科利1,2   

  1. 1. 中国科学院沈阳自动化研究所机器人学国家重点实验室 沈阳 110016;
    2. 中国科学院机器人与智能制造创新研究院 沈阳 110169;
    3. 中国科学院大学 北京 100049
  • 收稿日期:2019-01-10 修回日期:2019-05-22 出版日期:2019-11-05 发布日期:2020-01-08
  • 通讯作者: 刘金国(通信作者),男,1978年出生,博士,研究员,博士研究生导师。主要研究方向为空间机器人、空间结构与机构、仿生智能机器人。E-mail:liujinguo@sia.cn
  • 作者简介:赵鹏远,男,1994年出生,硕士研究生。主要研究方向为空间可展开结构与机构。E-mail:zhaopengyuan@sia.cn;吴晨晨,女,1990年出生,博士,副研究员,硕士研究生导师。主要研究方向为离轨帆、柔性太阳能电池阵、基于折纸艺术的新型可展开空间结构与机构。E-mail:wuchenchen@sia.cn
  • 基金资助:
    国家重点研发计划(2018YFB1304600)、国家自然科学基金(51775541)、中国科学院交叉创新团队(JCTD-2018-11)和中科院百人计划人才项目(Y8A3210304)资助项目。

SIASAIL-Ⅰ Solar Sail Deployment Mechanism

LIU Jinguo1,2, ZHAO Pengyuan1,2,3, WU Chenchen1,2, QIN Dong1,2, CHEN Keli1,2   

  1. 1. Stata Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016;
    2. Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169;
    3. University of Chinese Academy of Sciences, Beijing 100049
  • Received:2019-01-10 Revised:2019-05-22 Online:2019-11-05 Published:2020-01-08

摘要: 结合太阳帆构型及其性能要求,设计三轴稳定、整体张拉式正方形太阳帆的展开机构。对展开机构进行伸展杆同步性设计,并计算验证同步性设计的合理性。采用有限元方法分析了薄壁管状帆桁构型对其抵抗拉伸/弯曲变形的影响,结果表明豆荚形帆桁的综合性能最优。对2根C形杆点焊形成的人字形帆桁和正常人字形帆桁进行了静力学分析对比。分析了人字形帆桁伸展过程出现"鼓包"现象的原因,并提出防"鼓包"设计。对比了3种不同的帆膜折叠方式,给出折叠次数与最大卷绕高度的关系,定义折痕指数Z以比较不同折叠方式在折叠次数、收拢体积等方面优劣,发现折叠方式C特性最优。最后完成了SIASAIL-Ⅰ太阳帆的研制工作,并分别开展了帆桁带膜地面展开试验测试。试验过程平稳,未出现"鼓包"现象,各伸展杆实现了较好的同步性,验证了展开机构的可行性。

关键词: 太阳帆, 展开机构, 帆桁构型, 有限元, 帆膜折叠

Abstract: A three-axis stable, integral tensioned square solar sail deployment mechanism is designed according to the solar sail configuration and its performance requirements. The extension rod synchronization design is performed on the deployment mechanism, and the reasonability of the synchronic design is verified. The influence of the shape of thin-walled booms in resisting tensile and bending deformation is analyzed using finite element method. The results show that lenticular boom has the best comprehensive performance. The static comparative analysis of the Bi-TRAC and the Bi-TRAC welded by two C-shaped rods is carried out. The design of booms to resist blossoming that exist in the process of Bi-TRAC deploying is proposed. Comparing three different folding methods of the sail membrane, the relationship between the number of folding and the maximum winding height is given, and the crease index Z is defined to compare the performance of different folding methods in terms of folding numbers and folded volume. The result shows that folding method C is optimal. Finally, SIASAIL-I solar sail is developed, and boom with membrane unfolding test were carried out on the ground. The test process is stable, and there is no blossoming. The booms achieve good synchronism and the tests verify the feasibility of the deployment mechanism.

Key words: solar sail, deployment mechanism, sail configuration, finite element, sail folding

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