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首页> 外文期刊>Journal of guidance, control, and dynamics >Applications of V-Infinity Leveraging Maneuvers to Endgame Strategies for Planetary Moon Orbiters
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Applications of V-Infinity Leveraging Maneuvers to Endgame Strategies for Planetary Moon Orbiters

机译：V-无限杠杆演算在行星月球轨道器终局策略中的应用

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摘要

Delivering an orbiter to a planetary moon such as Europa or Titan requires an excessive amount of fuel if the trajectory is not carefully and cleverly planned. V -infinity leveraging maneuvers are an effective means to reduce total Delta- V requirements to achieve orbit about a planetary satellite. This work characterizes optimal sequences of flybys and leveraging maneuvers with the aid of tools to construct, map, and analyze these sequences and compare them with a theoretical minimum. Numerical results show that the optimal location for performing V-infinity reduction maneuvers is not necessarily at apoapsis, due to targeting constraints. By plotting total Delta-V versus time-of-flight for tens of thousands of generated sequences, a Pareto front is created of the most efficient sequences for each given flight time. An infinite series of flybys and leveraging maneuvers (theoretical minimum) results in a Delta-V savings of over 70 % when compared with a direct burn during flyby. While infinite missions are not possible, it is feasible to reduce the total Delta-V by 50% with only a modest increase in flight time. Increasing the mission duration further does not result in significant reductions.
机译：如果没有精心周密地计划轨道，则将轨道飞行器运送到诸如欧罗巴或泰坦之类的行星月球需要过多的燃料。 V无限杠杆操纵是降低总Delta V要求以实现绕行星卫星运行的有效方法。这项工作借助工具来构造，绘制和分析这些序列，并通过理论上的最小值进行比较，从而描绘出飞越和利用演习的最佳序列。数值结果表明，由于目标限制，执行V-∞减少操作的最佳位置不一定处于顶点。通过绘制成千上万个产生的序列的总Delta-V与飞行时间的关系，可以为每个给定的飞行时间创建最有效序列的Pareto前沿。与飞越过程中的直接燃烧相比，无数次飞越和杠杆操作（理论上的最小值）可导致Delta-V节省70％以上。尽管不可能执行无限任务，但可以将总Delta-V降低50％，而飞行时间仅适度增加是可行的。进一步增加任务持续时间不会导致大量减少。

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