• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (5): 29-38.doi: 10.3901/JME.2020.05.029

• 航天重器——空间大型可展机构与装备专刊 • 上一篇    下一篇

基于螺旋理论的三棱锥折展机构构型综合与组网

朱佳龙1,2, 黄志荣1, 郑士昆1, 许允斗3, 段玉柱1, 马小飞1   

  1. 1. 中国空间技术研究院西安分院 西安 710100;
    2. 哈尔滨工业大学机电工程学院 哈尔滨 150001;
    3. 燕山大学机械工程学院 秦皇岛 066004
  • 收稿日期:2019-01-08 修回日期:2019-06-10 出版日期:2020-03-05 发布日期:2020-04-23
  • 通讯作者: 马小飞(通信作者),男,1980年出生,博士,研究员,博士研究生导师。主要研究方向为空间结构与机构设计理论与应用技术。E-mail:maxf504@126.com
  • 作者简介:朱佳龙,男,1988年出生。主要研究方向为空间可展开机构。E-mail:604884686@qq.com
  • 基金资助:
    国家自然科学基金资助项目(11290154,U1537213)。

Configuration Synthesis and Networking Design of Triangular Pyramid Deployable/Foldable Mechanism

ZHU Jialong1,2, HUANG Zhirong1, ZHENG Shikun1, XU Yundou3, DUAN Yuzhu1, MA Xiaofei1   

  1. 1. China Academy of Space Technology(Xi'an), Xi'an 710100;
    2. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001;
    3. Dept. Mechanical Engineering, Yanshan University, Qinhuangdao 066004
  • Received:2019-01-08 Revised:2019-06-10 Online:2020-03-05 Published:2020-04-23

摘要: 研究折展单元机构构型综合对于可展开天线机构创新设计具有重要意义。根据三棱锥折展单元机构多运动输出期望公共运动和期望同步运动自由度要求,基于螺旋理论约束综合法,完成机构公共运动和耦合同步运动支链的构型综合,获得了多种基本折展单元构型,并结合应用实际确定一种优选三棱锥折展单元机构。根据3RR-3RRR单元折展机构的组网方式和组网运动的要求,采用螺旋理论进行了运动副的构型设计和优化,综合出一种具有耦合自由度的高刚度三棱锥折展单元组网机构。所采用的构型综合方法实现了螺旋理论约束综合法在折展机构构型综合中的应用,为具有多运动输出部件耦合运动要求的机构综合研究提供参考。综合得到的机构适用于星载构架天线反射器等空间曲面支撑类机构应用需求,具有广泛的应用前景。

关键词: 螺旋理论, 折展机构, 构型综合

Abstract: The research on deployable/foldable unit mechanism configuration synthesis is great significant for deployable antenna mechanism innovation design. Based on the expected public motion requirement and the expected synchronous motion requirement of the triangular pyramid deployable/foldable unit mechanism, and based on the constraint-synthesis method of the Screw Theory, a series of kinematic chains and several basic deployable/foldable are proposed. Combined with practical application, a kind of triangular pyramid unit is obtained. According to the networking mode and networking motion requirement, configuration design and optimization of networking mechanism are accomplished with 3RR-3RRR mechanism, and a kind of triangular pyramid unit-networking deployable/foldable mechanism is achieved. With the study, a configuration synthesis approach of deployable/folder mechanism with multi-motion output members is formed. The proposed synchronized deployable/foldable networking mechanisms are applicable for satellite-borne truss reflectors, which is widely prospect in engineering applications.

Key words: screw theory, deployable/foldable mechanism, configuration synthesis

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