• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2025, Vol. 61 ›› Issue (7): 338-348.doi: 10.3901/JME.2025.07.338

• 机器人及机构学 • 上一篇    下一篇

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球面四杆Bricard-like机构的设计与研究

孙学敏1, 李锐明2, 荀致远3, 姚燕安2   

  1. 1. 山东管理学院智能工程学院 济南 250357;
    2. 北京交通大学机械与电子控制工程学院 北京 100044;
    3. 暨南大学信息科学技术学院/网络空间安全学院 广州 510632
  • 收稿日期:2024-05-01 修回日期:2024-09-15 发布日期:2025-05-12
  • 作者简介:孙学敏,女,1988年出生,博士。主要研究方向为机构学与机器人学。E-mail:xmsun@sdmu.edu.cn
    李锐明(通信作者),男,1985年出生,博士,副教授。主要研究方向为机构学与机器人学。E-mail:lirm@bjtu.edu.cn荀致远,男,1988年出生,博士。主要研究方向为机构学与机器人学。E-mail:xzyxun@126.com
    姚燕安,男,1972年出生,博士,教授,博士研究生导师。主要研究方向为机构学与机器人学。E-mail:yayao@bjtu.edu.cn
  • 基金资助:
    山东管理学院博士科研启动基金资助项目(SDMUD202123)。

Design and Research of Spherical Four-bar Bricard-like Mechanism

SUN Xuemin1, LI Ruiming2, XUN Zhiyuan3, YAO Yanan2   

  1. 1. School of Intelligent Engineering, Shandong Management University, Jinan 250357;
    2. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044;
    3. College of Information Science and Technology/College of Cyber Security, Jinan University, Guangzhou 510632
  • Received:2024-05-01 Revised:2024-09-15 Published:2025-05-12

摘要: 折展机构具有良好的折叠与展开性能,因此广泛应用于航空航天等领域,而构造单元创新设计一直是设计折展机构的关键问题。针对该问题,设计和研究一类由三个球面四杆机构组成的新型Bricard-like机构,并研究其运动特性与组网。通过分析球面四杆机构与Bricard机构的约束条件,得到球面四杆Bricard-like机构的设计方法以及其约束条件,得到三类球面四杆Bricard-like机构,即面对称、一般化三边形以及三对称类型。详细分析三对称Bricard-like机构的运动特点,设计圆弧和直杆两款三对称Bricard-like机构,通过分析球面剪叉机构和Bricard-like机构的特点,得到四类剪叉式Bricard-like机构的设计方法并分析其各自运动特点。此外,设计一系列的具有大折展比、可折叠为一束等特点的组网单元,选择球面Bricard-like机构及剪叉式Bricard-like机构进行组网。最后,设计与制作球面Bricard-like机构、剪叉式Bricard-like机构及组网单元的3D打印样机模型,验证设计方法的正确性与运动的可行性。

关键词: 球面四杆, 回环连接, Bricard, 折展机构, 剪叉机构

Abstract: Deployable mechanism has good folding and unfolding performance, so it is widely used in aerospace and other fields, and the innovative design of construction unit has always been the key problem in the design of deployable mechanism. In order to solve this problem, a new type of Bricard-like mechanism (BM) composed of three spherical four-bar mechanisms is designed and studied, and its motion characteristics and network are studied. By analyzing the constraint conditions of spherical four-bar mechanism and BM, the design method and constraint conditions of spherical four-bar BM are obtained, and three kinds of BM are obtained, that is, plane-symmetric, generalized trihedral and three-fold symmetric. The motion characteristics of the three-fold symmetric BM are analyzed in detail, and two kinds of three-fold symmetric BM are designed, namely arc and straight bar. By analyzing the characteristics of the spherical scissors mechanism and the BM, the design methods of four kinds of scissors Bricard-like mechanism(SBM) are obtained and their respective motion characteristics are analyzed. In addition, a series of network units with large deployable ratio and can be folded into a bundle are designed, and the BM and SBM are selected for designing the network. Finally, the 3D printing prototype models of BM, scissors BM and network unit are designed and made to verify the correctness of the design method and the feasibility of movement.

Key words: spherical four-bar, loop-connected, Bricard, deployable mechanism, scissors mechanism

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