论文部分内容阅读
本文研究了飞机纵向飞行轨迹的优化技术,选用质点运动能量状态方程为飞机运动模型,直接操作成本为优化指标函数;飞机纵向飞行剖面被假定分为三个飞行段:爬升、巡航和下降;将能量状态引入指标函数,使其成为哈密顿函数中的独立变量,则由动态变分法和极小值原理得到对各飞行轨迹段的优化算法;尔后用Fibonacci单参数搜索法来予以实现。文中给出了部分仿真结果。
In this paper, the optimization technique of longitudinal trajectory of aircraft is studied. The particle kinetic energy equation of state is selected as the model of airplane motion, and the direct operation cost is the optimal index function. The longitudinal flight profile of the aircraft is assumed to be divided into three flight segments: climbing, cruising and descending. The energy state is introduced into the index function to make it an independent variable in the Hamiltonian function. The dynamic algebraic method and the minimum principle are used to get the optimal algorithm for each flight path segment. Then the Fibonacci single parameter search method is used to achieve this. Some simulation results are given in the paper.