Dynamics and capability of along orbit debris self-collecting with rotating constant magnets

Yuan-wen Zhang, Tian Ma
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Abstract

Orbital debris with equivalent size of 1∼10 cm is hard to be detected and its number is huge, which is the most harmful to on-orbit spacecraft while there is still no effective removal means. Inspired by vacuum cleaner, applying the conductive property of orbital debris and the physical law that variable magnetic flux would induce eddy current on the surface of a conductive material, this paper put forward a novel approach of ‘along orbit debris self-collecting with rotating constant magnetic dipole array’. Based on dynamic modeling, self-collecting feasibility and control capability analysis, evolution law of relative orbital motion with induced magnetic force derivation, and on-orbit debris magnetic collecting numerical simulation, this novel approach has been verified and the corresponding requirements of magnetic collector are put forward. In addition, this paper also gave how to use several key parameters to adjust the region of along orbit debris self-collecting, and pointed out several problems needing to be researched in-depth for actual application.
利用旋转恒定磁铁自收集沿轨碎片的动力学和能力
等效尺寸为1∼10厘米的轨道碎片难以被探测到,且数量巨大,对在轨航天器的危害最大,而目前还没有有效的清除手段。本文受吸尘器的启发,应用轨道碎片的导电特性和变磁通量会在导电材料表面产生涡流的物理规律,提出了一种 "旋转恒磁偶极子阵列沿轨碎片自收集 "的新方法。基于动态建模、自收集可行性和控制能力分析、诱导磁力相对轨道运动演化规律推导和在轨碎片磁收集数值仿真,验证了这种新方法,并提出了相应的磁收集器要求。此外,本文还给出了如何利用几个关键参数来调整沿轨碎片自收集区域,并指出了实际应用中需要深入研究的几个问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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