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Drag sails for space debris mitigation

机译:拖曳帆以减轻空间碎片

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摘要

The prudence for satellites to have a mitigation or deorbiting strategy has been brought about by the ever increasing amount of debris in Earth orbit. Drag augmentation is a potentially passive method for de-orbiting in LEO but its collision risk mitigation efficiency is sometimes underestimated by not taking all the relevant factors into account. This paper shows that using drag augmentation from a deployable drag-sail to de-orbit a satellite in LEO will lead to a reduction in collision risk. In order to support this finding, the models that are needed in order to evaluate the collision risk of a decaying object under drag conditions are presented. A comparison is performed between the simpler Area-Time-Product (ATP) and more precise collision risk analysis, and the effects that are overlooked in the simple ATP calculation are explained. Crown Copyright (C) 2014 Published by Elsevier Ltd. on behalf of IAA. All rights reserved.
机译:由于地球轨道上不断增加的碎片,使卫星采取缓解或离轨策略的审慎行事。阻力增大是在LEO中进行离轨的一种潜在的被动方法,但是由于没有考虑所有相关因素,有时会低估了其降低碰撞风险的效率。本文表明,使用可展开式阻力帆的阻力增强来使LEO中的卫星脱离轨道将降低碰撞风险。为了支持这一发现,提供了在拖曳条件下评估腐烂物体碰撞风险所需的模型。在更简单的“面积-时间-乘积”(ATP)和更精确的碰撞风险分析之间进行了比较,并说明了在简单ATP计算中忽略的影响。官方版权(C)2014,由Elsevier Ltd.代表IAA发布。版权所有。

著录项

  • 来源
    《Acta astronautica》 |2015年第apraamay期|65-75|共11页
  • 作者单位

    Univ Surrey, Surrey Space Ctr, Guildford GU2 7XH, Surrey, England;

    Univ Surrey, Surrey Space Ctr, Guildford GU2 7XH, Surrey, England;

    ESA ESTEC TEC MEC, NL-2201 AZ Noordwijk, Netherlands;

  • 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

    Space debris; Deorbiting; Drag-sail; Collision risk;

    机译:空间碎片;轨道运动;拖船;碰撞风险;

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