由于“星链”等巨型星座的持续部署,低轨空间碎片已经呈现爆发式增长的趋势,急需主动离轨技术以减缓碎片增长。为验证基于球帆的主动离轨技术,开展了针对“北理工一号”(BP-1b)卫星的主动离轨任务设计,建立了BP-1b的轨道力学模型,采用通用轨道设计软件寿命分析模块和NRLMSISE2000大气密度模型,计算了BP-1b的轨道寿命并设计了主动离轨球帆关键参数。完成了直径0.5m球帆设计、研制、系统集成、地面真空环境展开和力学适应性研究,并于2019年7月到8月完成了在轨飞行演示验证。验证结果表明,球帆在轨成功展开并实现了BP-1b卫星的主动离轨。
曹生珠
,
王虎
,
张凯锋
,
张晓敏
,
李学磊
,
邢振华
,
李林
,
吴敢
,
周超
,
李坤
,
王健
. 柔性气阻球帆主动离轨装置及其在轨飞行验证[J]. 空间科学与试验学报, 2021
, 21(3)
: 29
-33
.
DOI: 10.19963/j.cnki.2096-4099.2021.03.004
Due to the continuous deployment of giant constellations such as Starlink,LEO space debris has shown an explosive growth trend,and active de-orbiting technology is urgently needed to slow down debris growth.In order to verify the active de-orbit technology based on membrane spherical sail,the active de-orbit mission design for the BP-1b satellite was carried out,and the orbital mechanics model of BP-1b was established.The orbital lifetime of BP-1b was calculated and the key parameters of the active de-orbit membrane spherical sail were designed by using the lifetime analysis and NRLMSISE 2000 atmospheric density model.The design,development,system integration,ground vacuum environment deployment and mechanical adaptability research of the spherical sail with a diameter of 0.5m were completed,and the on-orbit flight demonstration verification was completed from July to August 2019.The test results have shown that the spherical sail successfully deployed in orbit and realized the active de-orbit of BP-1b satellite.
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