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考虑绳阻尼的绳系并联机器人动力学特性分析

彭苗娇 吴惠松 林麒 周凡桂 柳汀 王晓光

彭苗娇, 吴惠松, 林麒, 等 . 考虑绳阻尼的绳系并联机器人动力学特性分析[J]. 北京航空航天大学学报, 2020, 46(2): 304-313. doi: 10.13700/j.bh.1001-5965.2019.0205
引用本文: 彭苗娇, 吴惠松, 林麒, 等 . 考虑绳阻尼的绳系并联机器人动力学特性分析[J]. 北京航空航天大学学报, 2020, 46(2): 304-313. doi: 10.13700/j.bh.1001-5965.2019.0205
PENG Miaojiao, WU Huisong, LIN Qi, et al. Dynamic characteristics of wire-driven parallel robot with wire damping[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(2): 304-313. doi: 10.13700/j.bh.1001-5965.2019.0205(in Chinese)
Citation: PENG Miaojiao, WU Huisong, LIN Qi, et al. Dynamic characteristics of wire-driven parallel robot with wire damping[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(2): 304-313. doi: 10.13700/j.bh.1001-5965.2019.0205(in Chinese)

考虑绳阻尼的绳系并联机器人动力学特性分析

doi: 10.13700/j.bh.1001-5965.2019.0205
基金项目: 

国家自然科学基金 11472234

国家自然科学基金 11702232

国家自然科学基金 11072207

中央高校基本科研业务费专项资金 20720180071

详细信息
    作者简介:

    彭苗娇  女, 博士研究生。主要研究方向:绳系并联机器人、动力学及振动

    林麒  女, 博士, 教授, 博士生导师。主要研究方向:绳系并联机器人、风洞试验模型支撑、实验流体力学

    通讯作者:

    林麒. E-mail: qilin@xmu.edu.cn

  • 中图分类号: V216.8;O313.7

Dynamic characteristics of wire-driven parallel robot with wire damping

Funds: 

National Natural Science Foundation of China 11472234

National Natural Science Foundation of China 11702232

National Natural Science Foundation of China 11072207

the Fundamental Research Funds for the Central Universities 20720180071

More Information
  • 摘要:

    针对应用于风洞试验模型支撑的绳系并联机器人的设计需求,采用实验和理论建模相结合的方法,研究绳阻尼对绳系并联机器人动力学特性的影响。首先,为了准确地定量描述绳阻尼,设计了一套测量绳阻尼的实验装置,通过实验得到了不同参数下的绳阻尼比;其次,考虑了绳阻尼,对绳张力进行建模,并提出了考虑绳阻尼的绳系并联机器人的动力学建模方法;最后,分析了绳阻尼对绳系并联机器人动力学特性的影响。结果表明:绳阻尼对绳系并联机器人动力学响应的影响主要体现在响应幅值上,绳直径越大,绳阻尼对绳系并联机器人动力学响应的减振作用越明显。当绳阻尼系数大于0.6 N·s/m时,不论绳直径粗细如何,绳阻尼对绳系并联机器人动力学特性的影响不能忽略。研究结果可为绳系并联机器人的设计提供理论指导。

     

  • 图 1  绳阻尼实验原理及装置

    Figure 1.  Wire damping experimental principle and device

    图 2  实验绳样本

    Figure 2.  Wire samples for experiment

    图 3  绳在竖直面内的振动位移响应(d=0.6 mm,L0=1 m,T0=30 N)

    Figure 3.  Vibration displacement response of wire in vertical plane(d=0.6 mm, L0=1 m, T0=30 N)

    图 4  绳阻尼比与预紧力的关系(d=0.6 mm,L0=1 m)

    Figure 4.  Relationship between wire damping ratio and preload(d=0.6 mm, L0=1 m)

    图 5  绳阻尼比与初始绳长的关系(d=0.6 mm)

    Figure 5.  Relationship between wire damping ratio and wire length (d=0.6 mm)

    图 6  绳阻尼比与绳直径的关系(L0=1 m)

    Figure 6.  Relationship between wire damping ratio and wire diameter (L0=1 m)

    图 7  WDPR原理样机

    Figure 7.  WDPR prototype

    图 8  WDPR运动学示意图

    Figure 8.  Kinematic schematic diagram of WDPR

    图 9  飞机模型沿OX方向位姿变化

    Figure 9.  Attitude variation of aircraft model along OX direction

    图 10  飞机模型俯仰角变化

    Figure 10.  Pitching angle variation of aircraft model

    图 11  绳张力变化

    Figure 11.  Wire tension variation

    图 12  WDPR动力学响应

    Figure 12.  Dynamic response of WDPR

    图 13  绳阻尼系数变化对WDPR动力学响应的影响

    Figure 13.  Influence of wire damping coefficient variation on dynamic response of WDPR

    表  1  绳样本的物性参数

    Table  1.   Physical parameters of wire samples

    样本序号 绳直径d/mm 材料 体密度ρw/(kg·m-3) 初始绳长L0/m 预紧力T0/N
    1 0.6 Kevlar 1 440 0.6~1.4 20~150
    2 1.3
    3 2
    下载: 导出CSV

    表  2  不同直径绳的阻尼系数(绳5)

    Table  2.   Damping coefficient of wire with different diameters(Wire No.5)

    绳直径d/mm 初始绳长L0/m 预紧力T0/N 阻尼比ζ 阻尼系数c/(N·s·m-1)
    0.6 0.685 30 0.034 0.131
    2 0.685 30 0.075 3.198
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-05-05
  • 录用日期:  2019-06-14
  • 网络出版日期:  2020-02-20

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