基于一个使命的轨道设计到农神,这篇论文由盒子在各种各样的秋千中讨论四条不同轨道。我们假定单个推动当太空船接近天的身体时,在每种情况中被使用。EJS,他们,飞序列的 EVEJS 和 EVVEJS 的一些最佳的轨道用五个全球优化算法被获得:DE, PSO, DP,混合算法 PSODE 和另外一个混合算法, DPDE。DE 被证明比处于轨道优化问题的另外的非混合的算法优异。PSO 和 DE 的混合算法能改进 DE 的优化表演,它被序列被使命与给定的秋千验证到农神。最后,由序列的四个不同秋千的优化结果与 ESA 的行为的那些相比。
Based on the trajectory design of a mission to Saturn, this paper discusses four different trajectories in various swingby cases. We assume a single impulse to be applied in each case when the spacecraft approaches a celestial body. Some optimal trajectories ofEJS, EMS, EVEJS and EVVEJS flying sequences are obtained using five global optimization algorithms: DE, PSO, DP, the hybrid algorithm PSODE and another hybrid algorithm, DPDE. DE is proved to be supe- rior to other non-hybrid algorithms in the trajectory optimi- zation problem. The hybrid algorithm of PSO and DE can improve the optimization performance of DE, which is vali- dated by the mission to Saturn with given swingby sequences. Finally, the optimization results of four different swingby sequences are compared with those of the ACT of ESA.