Optimal low-thrust transfers with constraints---generalization of averaging techniques
Optimal low-thrust transfers with constraints---generalization of averaging techniques
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DOI：
10.1016/s0094-5765(97)00208-7
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发表时间：
1997-08
影响因子：
3.5
通讯作者：
S. Geffroy;R. Epenoy
中科院分区：
文献类型：
--
作者：
S. Geffroy;R. Epenoy
提出了一种基于平均技术的最优低推力传递的统一研究。针对任意距离轨道间的轨迹优化问题，研究了基于变速加速的最短时间策略和节油策略。最佳的低推力交会也可以用同样的方法来处理。在每种情况下，都包括几个限制，要么是环境因素，如地球扁率和阴影效应，要么是技术因素，如推力方向限制。用广义平均方法处理了不同的问题，并对每个问题讨论了近似的理论证明。最后对小推力地球静止转移任务的结果进行了分析和比较。
A unified study of optimal low-thrust transfers is presented, based on the use of averaging techniques. Both minimum-time and fuel-saving strategies using non-constant acceleration are investigated to optimize the trajectory between arbitrary distant orbits. Optimal low-thrust rendezvous could also be treated by the same way. In each case, several constraints are included, either environmental such as Earth oblateness and shadow effect, or technological such as thrust direction limits. The different problems are treated by a generalized averaging method and for each of them, theoretical justification of the approximation is discussed. Results are finally analysed and compared for the low-thrust geostationary transfer mission.