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首页> 外文期刊>The Aeronautical Journal >Vertical flight profile optimization for a cruise segment with RTA constraints
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Vertical flight profile optimization for a cruise segment with RTA constraints

机译：具有RTA约束的巡航航段的垂直飞行剖面优化

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This paper presents the results of a research performed at the Research Laboratory in Active Controls, Avionics and Aeroservoelasticty (LARCASE), at ETS, concerning optimisation strategies for cruise flight segments with imposed flight time (delimited by waypoints with required time of arrival constraints). Specifically, a new algorithm is presented that identifies the optimal vertical navigation profile (flight altitude and speed optimisation) for a cruise segment with imposed lateral navigation profile, bounded by two waypoints with required time of arrival constraints. The set of evaluated vertical navigation profiles are characterised by identical altitudes and speeds at their initial and final waypoints (at the beginning and the end of the cruise segment under optimisation), a maximum of one altitude step (relative to the initial altitude), and are flown at constant speed. This study investigates the flight performance increase (total cost reduction) for a flight along the optimal vertical navigation profile, relative to a flight at the optimal speed and initial cruise altitude. The evaluation was performed using a medium haul transport aircraft flight performance model, for three lateral navigation profiles and three wind profiles. The algorithm is targeted for Flight Management Systems platforms, to provide the optimal flight trajectory for the imposed lateral flight profile and time constraints.
机译：本文介绍了在ETS的主动控制，航空电子和航空弹性系统研究实验室（LARCASE）中进行的一项研究结果，该研究涉及具有强制飞行时间（由航路点和所需到达时间限制）的巡航航段的优化策略。具体而言，提出了一种新算法，该算法可识别具有施加的横向导航轮廓的巡航航段的最佳垂直导航轮廓（飞行高度和速度优化），该航段以两个航路点为边界，并具有所需的到达时间限制。这组经过评估的垂直导航曲线的特征是，它们的初始和最终航路点（在优化条件下的巡航航段的起点和终点）具有相同的高度和速度，最大高度差为一个（相对于初始高度），并且以恒定的速度飞行。这项研究调查了相对于最佳速度和初始巡航高度的飞行，沿着最佳垂直导航剖面的飞行的飞行性能提高（总成本降低）。评估是使用中程运输飞机的飞行性能模型针对三个横向导航剖面和三个风向剖面进行的。该算法针对飞行管理系统平台，旨在为施加的横向飞行轮廓和时间限制提供最佳飞行轨迹。

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