高超声速飞行器上升段轨迹设计

Ascent trajectory design for hypersonic vehicle

由于高超声速飞行器自身的飞行特点,其轨迹设计一直存在很多困难.高超声速飞行器受到各种气动、结构、过载的约束,在飞行器的上升段这些约束对轨迹的影响更为明显.因此,设计高超声速飞行器上升段轨迹需重点考虑这些约束问题.基于这样的思想,通过建立飞行器的动力学模型及最优控制模型,并进行了合理的模型转换,通过仿真计算得出了高超声速飞行器上升段的轨迹.结果表明,设计方法合理可行,可为以后类似的工作提供参考和帮助.

The trajectory design of hypersonic vehicle has many difficulties owing to the characteristics of itself. Hypersonic vehicle subjects to various constraints of aerodynamic,structure and overload. In the ascent trajectory the effect is more obvious. Therefore,the design of hypersonic ascent trajectory needs to focus on these constraints. In this paper,based on these ideas,vehicle＇s dynamics model and optimal control model were established,the optimal control model was transformed,and the hypersonic vehicle ascent trajectory was calculated.The results showed that the design method was reasonable and feasible,which could provide reference and help for similar work in the future.