中国机械工程 ›› 2025, Vol. 36 ›› Issue (10): 2379-2388.DOI: 10.3969/j.issn.1004-132X.2025.10.027

• 生物制造 • 上一篇    

双驱动器仿肺软体机器人建模与变形分析

张来喜1(), 赵杨昊宇1, 朱盛杰1, 马凯威2, 徐丰羽2   

  1. 1.兰州理工大学机械工程学院, 兰州, 730050
    2.南京邮电大学自动化学院, 南京, 210046
  • 收稿日期:2024-10-16 出版日期:2025-10-25 发布日期:2025-11-05
  • 通讯作者: 张来喜
  • 作者简介:张来喜*(通信作者),男,1973年生,教授。研究方向为机械系统动力学、机器人建模与控制。E-mail:laixi_zh@163.com
  • 基金资助:
    国家自然科学基金(52265013)

Modeling and Deformation Analysis of Dual Actuator Lung-like Soft Robots

Laixi ZHANG1(), Yanghaoyu ZHAO1, Shengjie ZHU1, Kaiwei MA2, Fengyu XU2   

  1. 1.School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Lanzhou,730050
    2.College of Automation,Nanjing University of Posts and Telecommunications,Nanjing,210046
  • Received:2024-10-16 Online:2025-10-25 Published:2025-11-05
  • Contact: Laixi ZHANG

摘要:

针对图像引导放射治疗带来的额外辐射剂量问题,以环节动物的肌肉静水结构为启发设计了一种双驱动器仿肺软体机器人,体外模拟人体肺部的呼吸变形。对仿肺软体机器人进行了三维建模和有限元仿真,由仿真结果可知,加装轴向驱动器能增加仿肺软体机器人变形自由度,使其更趋向真实肺部变形。通过共形几何方法分析了仿肺软体机器人的变形特性,并通过实验测试了其变形性能。研究结果表明:当径向驱动器气压为1 kPa和2 kPa、轴向驱动器气压为7 kPa时,径向驱动器的z轴尺寸伸长率分别为10.95%和8.87%,所设计的仿肺软体机器人能够满足模仿肺部变形的要求。最后,通过线性拟合得到了变形程度与充气气压之间的关系式,可应用于仿肺软体机器人的变形控制。

关键词: 仿肺软体机器人, 双驱动器, 共形几何, 变形分析

Abstract:

To address the problems of extra radiation dose caused by image-guided radiotherapy, a dual-actuator lung-like soft robot inspired by the muscle hydrostatic structure of annelids was designed to simulate the respiratory deformation of human lungs in vitro. The 3D modeling and finite element simulation of the lung-like soft robots were carried out. The simulation results show that the axial actuator may increase the degree of deformability of the lung-like soft robots and makes it more inclined to the real lung deformability. The deformation characteristics of the lung-like soft robots were analyzed by means of conformal geometry. The deformation performance of the robots was tested by experiments. The results show that when the radial actuator pressure is as 1 kPa and 2 kPa and the axial actuator pressure is as 7 kPa, the z-axis elongation of the radial actuator is as 10.95% and 8.87%, respectively. The designed lung-like soft robots may meet the requirements of imitating lung deformation. Finally, the relationship between the deformation extent and the inflation pressure was obtained by linear fitting, which may be applied to the deformation control of the lung-like soft robots.

Key words: lung-like soft robot, dual actuator, conformal geometry, deformation analysis

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