CAJ | 학술논문

给出了一种基于变比冲核电推进载人飞船探测小行星的轨道优化设计方法。首先基于双脉冲单圈Lambert轨道转移，对地球出发段和返回段进行搜索剪枝，再从两个可行区域中优选最佳飞行路径。设定“推进-滑行-推进”的分段飞行策略，以工质消耗最少为指标，利用混合法优化核电推进飞行轨迹，最后以分段优化参数为初值，基于整体任务约束将全飞行过程转化为非线性优化问题，将各飞行段进行拼接，获得整体参数优化解，并给出了数值和图形结果。
급출료일충기우변비충핵전추진재인비선탐측소행성적궤도우화설계방법。수선기우쌍맥충단권Lambert궤도전이，대지구출발단화반회단진행수색전지，재종량개가행구역중우선최가비행로경。설정“추진-활행-추진”적분단비행책략，이공질소모최소위지표，이용혼합법우화핵전추진비행궤적，최후이분단우화삼수위초치，기우정체임무약속장전비행과정전화위비선성우화문제，장각비행단진행병접，획득정체삼수우화해，병급출료수치화도형결과。
A trajectory optimization method of the nuclear propulsion manned as-teroids exploration is presented. In the case of launching between 2035 and 2065, based on the Lambert transfer orbit, the phases of departure from and return to the Earth are searched at first. Then the optimal flight tra jectory in the feasible regions is se-lected by pruning the flight sequences. Setting the nuclear propulsion flight plan as propel-coast-propel, and taking the minimal mass of aircraft departure as the index, the nuclear propulsion flight trajectory is separately optimized using a hybrid method. With the initial value of the optimized local parameters of each three phases, the global parameters are jointedly optimized. At last, the minimal departure mass tra jectory design result is given.