Approach Trajectory Optimization including a Tunnel Track Constraint
Approach Trajectory Optimization including a Tunnel Track Constraint
复制标题
包括隧道轨道约束的接近轨迹优化
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
F. Holzapfel
中科院分区：
文献类型：
--
作者：
F. Fisch;Fabian Sewerin;F. Holzapfel
本文描述了一种新开发的方法，用于在进场轨迹优化中对飞行器的位置施加特殊类型的路径约束。迫使轨迹通过多个位置的内点条件被重新表示为路径约束，从而省略了引入附加阶段。考虑到标准化的机场进场程序，飞机必须保持在垂直和水平走廊内。为了将这种走廊纳入进场轨迹的优化中，建立了一条穿越给定航路点的一定次数多项式的中心线。建立了一个直接给出飞机位置与走廊中心线之间最短距离的微分方程。然后，施加不等路径约束，使得飞行器偏离中心线的横向和垂直偏差是有界的，从而可以按照标准化的进近过程完成轨迹优化任务。利用欧洲控制组织发布的基于BADA数据库的点质量仿真模型作为进场轨迹优化的基础。要最小化的目标是在进场过程中消耗的燃料总量。
Our paper describes a newly developed method for imposing a special type of path constraints with respect to the position of an aircraft within the optimization of approach trajectories. Interior point conditions forcing the trajectory to pass a number of locations are reformulated as path constraints, thus omitting the introduction of additional phases. Considering standardized airport approach procedures, the aircraft have to remain inside a vertical and horizontal corridor. In order to incorporate such a corridor into the optimization of approach trajectories, a centerline in form of a polynomial of a certain degree running through the given waypoints is established. A differential equation is formulated that directly gives the shortest distance between the position of the aircraft and the centerline of the corridor. Then, inequality path constraints are imposed so that the lateral and the vertical deviation of the aircraft from the centerline is bounded and the trajectory optimization tasks can be accomplished in accordance with the standardized approach procedures. A point-mass simulation model based on the BADA database published by EUROCONTROL is utilized as basis for the optimization of the approach trajectories. The objective that is to be minimized is the total amount of fuel consumed during the approach.