有动力空间再入打击飞行器航迹优化

提出了有动力再入打击飞行器的航迹优化方法。基于标准的大气模型、数值的气动模型,考虑地球自转效应,建立了有动力再入打击飞行器的航迹优化模型。将再入航迹分为助推加速段和无动力滑翔段分别优化,从而得到优化航迹。算例表明,该方法得到的航程比最大升阻比航迹增加7.3%。因此,该方法用于有动力再入航迹的优化是有效的、可行的。

Trajectory Optimization of Prompt Space Reentry Strike Vehicle

A method was proposed for the trajectory optimization of prompt reentry strike vehicle.In this method,the model of prompt reentry strike vehicle was established with earth-rotating considered,based on standard atmosphere model and numerical aerodynamic model.The trajectory was divided into boost phase and glide phase,which were optimized respectively and the optimal trajectory was obtained.An example shows that the optimal trajectory has about 7% improvement in range over the maximum lift-to-drag ratio trajectory.Therefore this method is feasible and effective for the optimization of prompt reentry trajectory.