CAJ | 학술논문

载人登月任务中，任务中止策略设计是确保航天员安全返回的重要基础。首先结合“星座”计划飞行方案分析了载人登月任务各飞行阶段的中止策略；其次针对地月转移巡航段进行了双脉冲中止策略设计，以速度增量数值、方位角以及变轨时间间隔为控制变量，加入轨道同向、近地点高度、偏心率以及飞行时间约束，提出双脉冲变轨计算流程；最后采用人工免疫算法对该问题进行了求解和优化。仿真算例表明，双脉冲中止策略存在多组解，其全局分布特性为：飞行时间越短速度增量需求越大；飞行时间相近时，大偏心率中止轨道对应的速度增量小；故障点离地月加速点越近，所需速度增量越小。同时也验证了人工免疫算法求解双脉冲中止策略问题的有效性。
재인등월임무중，임무중지책략설계시학보항천원안전반회적중요기출。수선결합“성좌”계화비행방안분석료재인등월임무각비행계단적중지책략；기차침대지월전이순항단진행료쌍맥충중지책략설계，이속도증량수치、방위각이급변궤시간간격위공제변량，가입궤도동향、근지점고도、편심솔이급비행시간약속，제출쌍맥충변궤계산류정；최후채용인공면역산법대해문제진행료구해화우화。방진산례표명，쌍맥충중지책략존재다조해，기전국분포특성위：비행시간월단속도증량수구월대；비행시간상근시，대편심솔중지궤도대응적속도증량소；고장점리지월가속점월근，소수속도증량월소。동시야험증료인공면역산법구해쌍맥충중지책략문제적유효성。
Abort strategy design for manned lunar missions is an important basis to ensure the safe return of the crew to Earth .First, abort strategy in different phases of manned lunar missions were analyzed based on the flight plan of Constellation program .Then two-impulse abort strategy for trans-lunar coast was designed , and a calculation process of two-impulse transfer was proposed , in which velocity increment value , velocity azimuth and interval of two impulse were considered as control variable , orbit in the same direction , perigee height , eccentricity and flight time were joined as con-straints .Finally , an artificial immune algorithm was used to solve and optimize this problem .Simu-lation results showed that , two-impulse abort strategy has multiple solutions , and their global distri-bution character is that shorter flight time corresponds to greater velocity increment , larger eccentric-ity abort orbit has smaller velocity increment when flight time is similar .When the failure time is closer to translunar injection , the velocity increment required is smaller .The effectiveness of artifi-cial immune algorithm for solving two-impulse abort strategy was also validated .