中国空间科学技术

中国空间科学技术 ›› 2023, Vol. 43 ›› Issue (1): 53-62.doi: 10.16708/j.cnki.1000-758X.2023.0005

• 论文 • 上一篇    下一篇

二体绳系卫星系统冲击效应动力学与试验研究

段富成，张慧博，侯玮杰，秦晓刚，吴霞，杨生胜   

  1. 1 河北工业大学 机械工程学院，天津300401
    2 哈尔滨工程大学 机电工程学院，哈尔滨150001
    3 天津市微低重力环境模拟技术重点实验室，天津300301
    4 真空技术与物理国家级重点实验室，兰州730000
  • 出版日期:2023-02-25 发布日期:2023-01-13

Dynamics and experimental study of the shock effect of two-body tethered satellite system

DUAN Fucheng，ZHANG Huibo，HOU Weijie，QIN Xiaogang，WU Xia，YANG Shengsheng   

  1. 1 School of Mechanical Engineering，Hebei University of Technology，Tianjin 300401，China
    2 College of Mechanical and Electrical Engineering，Harbin Engineering University，Harbin 150001，China
    3 Tianjin Key Laboratory of Microgravity and Hypogravity Environment Simulation Technology，Tianjin 300301，China
    4 National Key Laboratory of Science and Technology on Vacuum Technology and Physics，Lanzhou 730000，China
  • Published:2023-02-25 Online:2023-01-13

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摘要： 为了研究冲击效应对二体绳系卫星系统动力学特性的影响，开展了基于绝对节点坐标法的柔性绳索模型及绳系卫星系统运动特性分析研究。首先介绍了绝对节点坐标法柔索模型的建立过程，并进行了动力学仿真实验，在仿真时充分考虑了柔索的轴向刚度矩阵、弯曲刚度矩阵以及质量矩阵，可在不增加计算量的同时保留系绳真实特性。最后，搭建了三自由度的二体绳系卫星地面模拟试验系统，在规格为20m×30m的大型气浮平台上开展了试验验证，对末尾释放阶段和初始回收阶段系绳的张力以及子星的运动状态进行了分析。验证结果表明：地面模拟试验与仿真实验相比，系绳张力误差均在5%以内，验证了该建模方法的有效性和所搭建的试验系统的可靠性，同时为绳系卫星的未来发展和地面试验的进一步展开奠定了基础。

关键词: 绝对节点坐标法, 绳系卫星, 动力学建模, 冲击效应, 试验验证

Abstract: In order to study the “shock effect” on the dynamics of the twobody rope satellite system，a flexible rope model based on the absolute nodal coordinate formulation（ANCF）and the equations of motion of the tethered satellite system were established.Firstly，the establishment process of the flexible rope model based on the ANCF was introduced，and the axial stiffness matrix，bending stiffness matrix and mass matrix of the flexible rope were fully considered in the simulation，which can retain the true characteristics of the rope system without increasing the amount of calculation.Finally，a 3-degree-of-freedom ground simulation experiment system of two-body rope satellite was built，and the verification experiment on a large air-floating platform with a specification of 20m×30m was carried out.The tension of the tether and the motion state of the sub-satellite during the final release phase and the initial recovery phase was analyzed in this experiment.The validation results indicate that the error of the tether tension is within 5% in the ground simulation test compared with the simulation experiment，which verifies the validity of the modeling method and the reliability of the experimental system，and provides support for the future development of the tether satellite and the ground experiment.

Key words: absolute nodal coordinate formulation, tethered satellite, dynamics modeling, shock effect, test verification