机构地区: 华南理工大学
出 处: 《飞行力学》 1998年第2期90-96,共7页
摘 要: 基于飞行器相对目标空间站的线性化运动方程,研究了交会对接中远距离接近段最优冲量解的必要条件,推导了确定最优解特征矢量曲线方程中待定参数的计算公式,给出了在特定初始状态和末状态下实现远距离接近的四次、三次、二次最优冲量解的作用时刻和大小的算法。通过一个交会实例的数字仿真分析,得到了有关远距离接近段制导方法的有指导价值的结果,验证了该方法是正确的、合理的。 Based on the assumption that the linearized equation of relative motion of spacecraft can be used to describle the transfer, the necessary conditions for the optimal solution of minimumfuel and multipleimpulse of the fardistance approximate phase in rendezvous and docking is investigated. Then, the algorithms for determining the undetermined parameters of the optimal primer vector and obtaining the optimal solution of fourimpulse, threeimpulse and twoimpulse with specified initial and final state are formulated, respectively. Finally, by analyzing the results of numerical simulation, the reasonableness of the theoretical conclusions obtained in this paper is verified and the instruction about this problem is putforwarded.
关 键 词: 交会 对接 制导方法 特征矢量 最优冲量 航天器
领 域: [航空宇航科学与技术] [航空宇航科学技术]