升力式再入飞行器再入轨迹优化分析

Entry trajectory optimization of lift reentry vehicle

在充分调研分析国内外轨迹优化方法的基础上,选择直接法将升力式再入飞行器的再入轨迹优化问题转化成参数优化问题,而后采用序列二次规划法来解该参数优化问题,并采用C++语言编写了优化算法,最后进行了再入飞行器的最大射程轨迹优化分析.仿真结果表明,采用本文所述的方法能够对升力式再入飞行器这一类轨迹优化问题进行优化分析,并具有较好的优化效果.

In this paper,on the basis of review of trajectory optimization method at home and abroad,the direct method and sequential quadratic programming algorithm is used to solve the trajectory optimization problem.The trajectory optimization problem is transformed into a parameter optimization problem using direct method and the parameter optimization problem is solved using sequential quadratic programming.A trajectory optimization algorithm is written using C＋＋,and a numerical simulation of maximum range entry trajectory is performed.The simulation results show that the technology of trajectory optimization for lift reentry vehicle proposed in this paper is reasonable and feasible with good results.