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首页> 外文会议>AHS 59th Annual Forum Proceedings Vol.1 May 6-8, 2003 Phoenix, Arizona >Longitudinal-Plane Simultaneous Non-Interfering Approach Trajectory Design for Noise Minimization
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Longitudinal-Plane Simultaneous Non-Interfering Approach Trajectory Design for Noise Minimization

机译：纵向平面同时无干扰进场轨迹设计，将噪声降至最低

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摘要

Runway-independent aircraft (RIA) operating under simultaneous non-interfering (SNI) traffic procedures have been proposed to alleviate airspace congestion at crowded urban airports. This paper introduces a methodology for designing minimum-noise longitudinal SNI approach trajectories for rotorcraft. An analytical model for ground noise annoyance associated with out-of-plane Blade-Vortex Interaction (BVI) noise is introduced and its application as the cost function for SNI trajectory optimization is described. The noise model relies on a physics-based semi-empirical expression developed to approximate the average annoyance levels associated with BVI noise on a representative ground plane. To guarantee strictly SNI trajectories, fixed-wing traffic corridors are treated as impenetrable obstacles modeled by their cross-sections in the longitudinal approach plane. Two optimization procedures are employed: a heuristic strategy that specifies trajectories using a small approach waypoint set and a globally-optimal cell-based algorithm. The feasibility and practicality of example minimum-BVI noise solutions are discussed.
机译：已经提出了在同时无干扰（SNI）交通程序下运行的与跑道无关的飞机（RIA），以缓解拥挤的城市机场的空域拥堵。本文介绍了一种用于设计旋翼飞机的最小噪声纵向SNI进近轨迹的方法。介绍了一种与面外叶片涡旋相互作用（BVI）噪声相关的地面噪声烦恼的解析模型，并描述了其作为SNI轨迹优化的代价函数的应用。噪声模型依赖于基于物理的半经验表达式，该表达式被开发为近似于代表性地平面上与BVI噪声相关的平均烦恼水平。为了确保严格的SNI轨迹，固定翼交通走廊被视为不可穿透的障碍物，其通过在纵向进近平面中的横截面进行建模。采用了两种优化程序：一种使用小进场航路点集指定轨迹的启发式策略，以及一种基于全局最优单元的算法。讨论了示例最小BVI噪声解决方案的可行性和实用性。

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