• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (7): 35-43.doi: 10.3901/JME.2020.07.035

• 机器人及机构学 • 上一篇    下一篇

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基于豆荚杆的三棱柱式可展开薄膜支撑臂设计与优化

李冰岩1, 刘荣强1, 从强2, 郭宏伟1, 林秋红2, 邓宗全1   

  1. 1. 哈尔滨工业大学机器人技术与系统国家重点实验室 哈尔滨 150001;
    2. 北京空间飞行器总体设计部 北京 100094
  • 收稿日期:2019-05-24 修回日期:2019-11-12 出版日期:2020-04-05 发布日期:2020-05-12
  • 作者简介:李冰岩,男,1990年出生,博士研究生。主要研究方向为空间可展开天线。E-mail:libingyan3@hotmail.com;
    刘荣强(通信作者),男,1965年出生,博士,教授,博士研究生导师。主要研究方向为可展机构设计与控制、空间机械臂理论与应用和月球探测车关键技术。E-mail:liurq@hit.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51835002,51575119,51675114)。

Design and Optimization of a Tri-prism Deployable Membrane Support Arm Using Lenticular Collapsible Composite Tubes

LI Bingyan1, LIU Rongqiang1, CONG Qiang2, GUO Hongwei1, LIN Qiuhong2, DENG Zongquan1   

  1. 1. State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001;
    2. Beijing Institute of Spacecraft System Engineering, Beijing 100094
  • Received:2019-05-24 Revised:2019-11-12 Online:2020-04-05 Published:2020-05-12

摘要: 大型可展开支撑臂具有广泛应用于空间任务的潜力,传统的可展开支撑臂主要采用的是合金材料,而可展开豆荚杆作为一种轻型复合材料会大大降低空间结构整体质量。结合薄膜天线的应用背景,提出一种基于豆荚杆的三棱柱式可展开薄膜支撑臂形式,并进行设计与优化。建立豆荚杆支撑臂的参数化模型,分析豆荚杆刚度参数与几何参数的关系,根据支撑臂设计目标函数分析选择豆荚杆截面参数。研究三棱柱式豆荚杆支撑臂动力学优化模型,对支撑臂单元数、框架管外径和厚度、斜拉索直径和预应力等进行优化设计,实现薄膜支撑臂最小质量基频比。分析绳索预应力和单元数量的优化结果,研究参数优化对支撑臂力学性能的提高作用。

关键词: 豆荚杆, 三棱柱式, 支撑臂, 展开机构, 参数优化

Abstract: Large-scale deployable support arms have the potential to be widely used in space missions. Conventional support arms mainly utilize alloy material, but the recently developed lightweight lenticular collapsible composite tube (LCCT) which utilizes lightweight composite material will greatly reduce the overall mass of space structures. A tri-prism deployable membrane support arm using LCCT is proposed, designed and optimized in this research with consideration of the membrane antenna application background. The parameterized model of LCCT support arm is established to illuminate the relationships between its stiffness parameters and geometrical parameters. According to the analysis of the design objective function of the support arm, the section parameters of LCCT are selected. The dynamic optimization model of the tri-prism support arm is studied, and the optimal design of the unit number, the outer diameter and thickness of frame tubes, the diameter and prestress of cables is carried out to realize the minimum ratio of mass to fundamental frequency for the membrane support arm. The optimization results of cable prestress and unit number are analyzed, and the effect of parameter optimization on the improvement of support arm mechanical properties is studied.

Key words: collapsible composite tube, tri-prism, support arm, deployable structure, parameter optimization

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