不规则目标旋转状态对激光烧蚀驱动冲量的影响
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摘要
激光烧蚀驱动技术是最有前途的空间碎片主动移除技术之一,但是在其移除过程中碎片的旋转状态会对激光驱动效果产生很大的影响,是该技术研究中需要解决的一个问题。通过理论计算分析了激光脉冲连续驱动旋转平板目标的冲量规律,及脉冲频率和目标旋转角速度对其的影响。并通过目标表面三角化三维重构计算的方法分析了不同脉冲频率和目标旋转角速度下,圆柱体、长方体、圆锥等典型外形目标和不规则目标自身旋转对激光脉冲连续辐照驱动产生冲量的影响规律。结果表明,目标自身旋转会使得脉冲激光连续作用的驱动效果随脉冲次数增多产生周期性变化,其大小和周期性变化规律受自转速度、脉冲频率及自身外形特点的影响;通过激光辐照策略的合理选择,可最小化甚至消除旋转对激光脉冲连续作用产生冲量方向的影响。
Laser ablation driven is one of the most promising active debris removal technologies.However, the rotation state of the target has a very complicated impact on the effect of laser ablation,which is one of the problems to be solved. In this paper, the laser driving impulse under the continuous irradiation for rotating plate target was analyzed by theoretical calculation, and the effect of pulse frequency and target rotation speed on it was also discussed. And with the surface triangulation and three-dimensional reconstruction calculation method, the magnitude and direction of laser driving impulse under the continuous irradiation for rotating typical shape target, such as cylinder, cuboid and cone, and irregular shape target were analyzed under different pulse frequency and different rotational angular velocity. The results show that the rotation of the target will make the driving effect of continuous pulse laser change periodically with the increase of pulse number; Its magnitude and periodic variation are affected by the rotation speed, pulse frequency and the shape of itself; By the rational selection of laser irradiation strategy, the influence of rotation on the impulse direction of laser pulse continuous irradiation can be minimized or eliminated.
Laser ablation driven is one of the most promising active debris removal technologies.However, the rotation state of the target has a very complicated impact on the effect of laser ablation,which is one of the problems to be solved. In this paper, the laser driving impulse under the continuous irradiation for rotating plate target was analyzed by theoretical calculation, and the effect of pulse frequency and target rotation speed on it was also discussed. And with the surface triangulation and three-dimensional reconstruction calculation method, the magnitude and direction of laser driving impulse under the continuous irradiation for rotating typical shape target, such as cylinder, cuboid and cone, and irregular shape target were analyzed under different pulse frequency and different rotational angular velocity. The results show that the rotation of the target will make the driving effect of continuous pulse laser change periodically with the increase of pulse number; Its magnitude and periodic variation are affected by the rotation speed, pulse frequency and the shape of itself; By the rational selection of laser irradiation strategy, the influence of rotation on the impulse direction of laser pulse continuous irradiation can be minimized or eliminated.
引文
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[2]Gong Zizheng,Xu Kunbo,Mu Yongqiang,et al.The space debris environment and the active debris removal techniques[J].Spacecraft Environment Engineering,2014,31(2):129-135.(in Chinese)
[3]Yang Wulin,Mu Yongqiang,Cao Yan,et al.Active removal of space debris by space-based laser system and its feasibility analysis[J].Spacecraft Environment Engineering,2014,32(4):361-365.(in Chinese)
[4]Phipps C R.A laser-optical system to re-enter or lower low Earth orbit space debris[J].Acta Astronautica,2014,93(1):418-429.
[5]Phipps C R.Laser space debris removal:now,not later[C]//SPIE,2015,9255:92553Q.
[6]Schall W O.Laser radiation for cleaning space debris from lower earth orbits[J].Journal of Spacecraft&Rockets,2002,39(2002):81-91.
[7]Liedahl D A,Libby S B,Rubenchik A.Momentum transfer by laser ablation of irregularly shaped space debris[C]//Proceedings of the 2010 International High-Power Laser Ablation Conference,2010:772-779.
[8]Liedahl D A,Rubenchik A,Libby S B,et al.Pulsed laser interactions with space debris:Target shape effects[J].Advances in Space Research,2013,52(5):895-915.
[9]Lu Yong,Liu Xiaoguang,Zhou Yu,et al.Detumbling technology for active removal of uncooperative target[J].Acta Aeronautica et Astronautica Sinica,2017,38:021302.(in Chinese)
[10]Yang Liwei,Wen Quan,Zhao Shanghong,et al.Research on de-orbiting characteristic of small scale space debris removal using space-based laser[J].Journal of Applied Optics,2018,39(2):268-273.(in Chinese)
[11]Papushev P,Karavaev Y,Mishina M.Investigations of the evolution of optical characteristics and dynamics of proper rotation of uncontrolled geostationary artificial satellites[J].Advances in Space Research,2009,43(9):1416-1422.
[12]Praly N,Hillion M,Bonnal C,et al.Study on the eddy current damping of the spin dynamics of space debris from the Ariane launcher upper stages[J].Acta Astronautica,2012,76(4):145-153.