助推-滑翔飞行器弹道分段优化研究

通过数值计算得到了升力体飞行器的气动参数,利用Radau伪谱法将助推-滑翔飞行器弹道优化问题转化为非线性规划问题,分别对主动段和滑翔段进行优化,通过仿真得到了飞行器从助推到滑翔的完整弹道,分析了主动段性能指标对飞行器最大射程的影响。研究结果表明,采用主动段关机点速度最大为性能指标的优化方案,其射程最大,且实现难度适中。

Research on Multi-Phase Trajectory Optimization for Boost-Glide Vehicle

The dynamics parameters of the lifting body were calculated by numerical simulation.The boost-glide vehicle’s trajectory was divided into two phases: power flight phase and glide phase.By Radau pseudospectral method,the trajectory optimization planning problem was converted into nonlinear planning problem.A integral trajectory from launch to glide was obtained by software simulating.The effect of the performance index of power flight on the maximum range was analyzed.The results show that the optimization project of which performance index was maximum speed had longer range and moderate difficulty.