跨大气层飞行器的无动力跃滑弹道优化研究

针对跨大气层飞行器的无动力跃滑飞行弹道的特性,建立了其飞行动力学模型,通过弹道仿真分析了该弹道相对于最小能量弹道所具有的射程和突防性能优势,提出了几种跳跃飞行可能采用的控制方式,其中最大升阻比控制方式在单一控制方式中的射程最大,在此基础上,基于射程最大进行全弹道优化,结果表明最大升阻比滑翔飞行是使射程最大的最佳飞行方式。

Trajectory Optimization of Skipping-glide Trans-atmospheric Flight

A fly dynamics model of skipping-glide trans-atmospheric flight with special trajectory is established in this paper.Comparing with inertial trajectory,it is found by simulating and analyzing that the skipping-glide trans-atmospheric flight trajectory has longer range and good penetration.Some kinds of fly maneuver are proposed,among which the fly maneuver of maximal lift-to-drag ratio is the best one for skipping-glide trans-atmospheric flight from the point of view of range.Therefore,the whole trajectory is optimized based on the longest range.The results indicate that,taking the trajectory for granted,the skipping-glide flight with the fly maneuver of maximal lift-to-drag ratio is the best fly maneuver scheme.