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首页> 外文期刊>Journal of guidance, control, and dynamics >Solar-Sail Trajectory Design for a Multiple Near-Earth-Asteroid Rendezvous Mission
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Solar-Sail Trajectory Design for a Multiple Near-Earth-Asteroid Rendezvous Mission

机译：多个近地小行星交会任务的太阳帆轨迹设计

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The scientific interest for near-Earth asteroids as well as the interest in potentially hazardous asteroids from the perspective of planetary defense led the space community to focus on near-Earth asteroid mission studies. A multiple near-Earth asteroid rendezvous mission with close-up observations of several objects can help to improve the characterization of these asteroids. This work explores the design of a solar-sail spacecraft for such a mission, focusing on the search of possible sequences of encounters and the trajectory optimization. This is done in two sequential steps: a sequence search by means of a simplified trajectory model and a set of heuristic rules based on astrodynamics, and a subsequent optimization phase. A shape-based approach for solar sailing has been developed and is used for the first phase. The effectiveness of the proposed approach is demonstrated through a fully optimized multiple near-Earth asteroid rendezvous mission. The results show that it is possible to visit five near-Earth asteroids within 10 years with near-term solar-sail technology.
机译：从行星防御的角度来看，近地小行星的科学兴趣以及对潜在危险小行星的兴趣促使太空界将重点放在近地小行星任务研究上。多次近地小行星会合任务以及对几个物体的特写观察可以帮助改善这些小行星的特征。这项工作探索了用于这种任务的太阳帆飞船的设计，重点是寻找可能的相遇顺序和轨迹优化。这是通过两个连续的步骤完成的：通过简化的轨迹模型进行的序列搜索以及基于天体动力学的一组启发式规则，以及随后的优化阶段。已经开发出一种基于形状的太阳能航行方法，并将其用于第一阶段。通过完全优化的多个近地小行星会合任务证明了所提出方法的有效性。结果表明，利用近期的太阳帆技术，有可能在10年内访问5个近地小行星。

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