非合作目标安全走廊设计及飞越逼近轨迹优化

In order to improve the safety of non-cooperative target's close-range approach trajectory, and optimize the approach time and fuel consumption at the same time, this paper designs the dynamic safety corridors of uncontrolled rotating satellite for the proximity to rotating non-cooperative target. The fly-by approach is chosen to reach the corridor entrance and the fly-by approach trajectory optimization method is proposed. First, based on the establishment of an uncontrolled rotating satellite spin model, the safety zone and the keep-out-zone are planned, and the basis for selecting two safety corridors is analyzed. Second, the fly-by approach is used as a close-range approach method, and with the goal of saving fuel and shortening the approach time, the two-pulse maneuver model is optimized and three optimization algorithms are selected to obtain the approach trajectory. The simulation results show that the choice of the safe corridor is related to the form, shape and interface position of the uncontrolled satellite spin. In the optimization problem of fly-by approaching two-pulse maneuver model, it is more advantageous to use the fgoalattain algorithm for optimization.