Optimization Procedure for Preliminary Design of Opposition-Class Mars Missions
Optimization Procedure for Preliminary Design of Opposition-Class Mars Missions
复制标题
DOI：
10.2514/2.4209
复制
发表时间：
1998
影响因子：
2.6
通讯作者：
L. Casalino;G. Colasurdo;D. Pastrone
中科院分区：
文献类型：
--
作者：
L. Casalino;G. Colasurdo;D. Pastrone
本文根据最优控制理论，发展了一种数值计算方法，并用于确定载人火星任务的最佳时机。高推力（脉冲）的任务被认为是;烧伤可能发生在行星的内部或外部的领域。金星的机会也被利用，而且时间限制经常存在。最优性的必要条件，推导出处理这样的复杂任务，构成了劳登的引物向量理论的扩展。特别是，最佳传输发生在一个symptuistic期间，属于反对党类进行了分析，考虑到偏心率和倾斜度的行星轨道;调整所产生的额外的时间限制进行了讨论。
A numerical procedure, based on the theory of optimal control, is developed and used to nd the ight opportunities for a mannedmission toMars. High-thrust (impulsive)missionsare considered; burns can occur either inside or outside the planets’ spheres of in uence. Venus yby opportunities also are exploited, and time constraints are often present. The necessary conditions for optimality, derived to deal with such complex missions, constitute an extension of Lawden’s primer vector theory. In particular, the optimal transfers that occur in a syzygistic period and that belong to the opposition class are analyzed, taking the eccentricity and inclination of the planetary orbits into account; adjustments produced by the addition of time constraints are discussed.