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Low-thrust Orbit Transfer of Arjima-type Asteroids

机译:Arjima型小行星的低推力轨道转移

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This paper investigates the accessible low-thrust transfer trajectories for a near-Earth asteroid transfer mission. The target asteroids considered are Arjuna type asteroids, which are characterized by their Earth-like orbital paths including low-eccentricity and low-inclination. The asteroid range is characterized by specific semi-major axes and transfer angles to provide an overall assessment of the potential Arjuna transfer domain. A single hovering ion beam spacecraft is employed for the task of asteroid redirection. The method utilizes a continuous thrust over the duration of the transfer maneuver to redirect the asteroid to an Earth bound orbit. The transfer model employs a minimized form of Gauss's variational equations to determine the available trajectories for asteroid redirection. The transfer model employs, in addition to the aforementioned orbital equations, spacecraft thruster and sizing metrics, as well as mission cost analysis formulae. The system parameters and orbital transfer paths are assessed with regards to key mission parameters, namely, timeframe for redirection, number of orbital revolutions, system mass, propellant mass, thrust, power, system cost, and financial return rate.
机译:本文研究了近地小行星转移任务的低推力转移轨迹。所考虑的目标小行星是Arjuna型小行星,其特征在于它们的类地球轨道路径,包括低偏心率和低倾角。小行星范围的特征是特定的半长轴和传输角,以提供对潜在Arjuna传输域的整体评估。单个悬停的离子束航天器用于小行星重定向的任务。该方法在转移机动的整个过程中利用了连续的推力,将小行星重定向至地球绕行轨道。转移模型采用高斯变分方程的最小化形式来确定小行星重定向的可用轨迹。除上述轨道方程式之外,转移模型还使用航天器推进器和尺寸度量标准以及任务成本分析公式。根据关键任务参数评估系统参数和轨道转移路径,即重定向时间范围,轨道转数,系统质量,推进剂质量,推力,功率,系统成本和财务回报率。

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