滑翔飞行器轨迹优化仿真研究

Research on Simulation of Trajectory Optimization for Glide Vehicle

滑翔飞行器相关技术是当今国际上的研究热点问题,飞行轨迹具有航程远、精度高、机动能力强等特点,为了达到航程的最大化,即节省能量的目的,以及获得其它优良特性,针对再入飞行段,在初始条件不变的基础上,通过对比分析三种适用于滑翔飞行器的轨迹飞行方式,包括固定攻角飞行、最大升阻比飞行和平衡滑翔飞行方式,研究轨迹的高度、航程等问题,仿真分析表明,采用最大升阻比飞行可以达到节省能量的目的,采用平衡滑翔飞行可以适用于某种特定需求的使用方式。

The technology about glide vehicle is popular all over the world. The trajectory of this vehicle has the characteristics of long range, high precision and good maneuvering capability. What we want is to maximize the range, in other word, to save energy and get some other good properties. In order to research the problems about the height and range of trajectory, this paper analyzed three kinds of flight modes which are suitable for glide vehicle un- der the non-changed initial conditions, including fixed angle of attack, maximum lift-to-drag ratio and equilibrium glide flight. The analyses of the simulation show that using the maximum lift-to-drag ratio flight can achieve the pur- pose of saving energy, while using the equilibrium glide flight can apply to a particular demand.