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Simulation of tether-nets for capture of space debris and small asteroids

机译：用于捕获空间碎片和小小行星的系绳网的模拟

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摘要

One of the most promising techniques to capture large debris on orbit consists in the use of tether-nets. With this concept currently at a medium technological readiness level only, numerical studies on tether-net removal missions are still needed. This paper presents a versatile simulator developed with the aim of gaining insight into the dynamics of tether-net capture of space debris. Its modular architecture supports multiple modeling choices and allows simulating diverse capture scenarios with different system designs. Simulation results are shown for the capture of a realistic launcher upper stage with the representation of the main components of the system, consisting in chaser, main tether, net, and two possible configurations of a closing mechanism. It is shown that only a closing mechanism with more than one attachment to each side of the net can guarantee containment of this type of debris after capture. It is also observed that a safer capture scenario is one in which the axis of rotation of the target is parallel to the direction of ejection of the net. Additional simulation results suggest that tether-nets could be used to capture not only large debris, but also small asteroids, and that this simulator could enable future studies.
机译：在轨道上捕获大型碎屑最有前途的技术之一在于使用系绳网。迄今为止，目前仅在中等技术准备水平下，仍然需要对系绳净去除任务的数值研究。本文介绍了一种多功能模拟器，旨在获得对空间碎片系绳捕获动态的洞察力。其模块化架构支持多种建模选择，并允许模拟具有不同系统设计的不同捕获方案。示出了仿真结果，用于捕获现实发射器上阶段，其具有系统主要部件的表示，包括追踪机构的追踪机构的两种可能的配置。结果表明，只有一个以上的闭合机构与网的每一侧的闭合机构可以保证捕获后容纳这种类型的碎片。还观察到，更安全的捕获场景是目标的旋转轴平行于网的喷射方向之一。额外的仿真结果表明，系绳网不仅可以用于捕获大型碎片，而且可以使用小的小行星，并且该模拟器可以实现未来的研究。

著录项

  • 来源
    《Acta astronautica》 |2019年第2期|448-461|共14页
  • 作者

    Botta Eleonora M.; Sharf Inna; Misra Arun K.;

  • 作者单位

    McGill Univ Dept Mech Engn Room 270 817 Sherbrooke St West Montreal PQ H3A 0C3 Canada;

    McGill Univ Dept Mech Engn Room 270 817 Sherbrooke St West Montreal PQ H3A 0C3 Canada;

    McGill Univ Dept Mech Engn Room 270 817 Sherbrooke St West Montreal PQ H3A 0C3 Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Tether-net; Active debris removal; Debris capture; Asteroid capture;

    机译：系绳;活性碎片去除;碎片捕获;小行星捕获;

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