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首页> 外文期刊>Journal of Aircraft >Performance Improvement of Small Unmanned Aerial Vehicles Through Gust Energy Harvesting
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Performance Improvement of Small Unmanned Aerial Vehicles Through Gust Energy Harvesting

机译：通过阵风能量收集提高小型无人机的性能

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摘要

Fixed-wing miniature aerial vehicles usually fly at low altitudes that are often exposed to turbulent environments. Gust soaring is a flight technique of energy harvesting in such a complex and stochastic domain. The presented work shows the feasibility and benefits of exploiting a nonstationary environment for a small unmanned aerial vehicle. A longitudinal dynamics trajectory is derived, showing significant benefits in extended flight with a sinusoidal wind profile. An optimization strategy for active control is performed, with the aim of obtaining the most effective set of gains for energy retrieval. Moreover, a three-dimensional multipoint model confirms the feasibility of energy harvesting in a more complex spatial wind field. The influence of unsteady aerodynamics is determined on the overall energy gain along the flight path with active proportional control. The aerodynamic derivatives describing the contribution to lift by a change in angle of attack and elevator deflection are identified as the most contributing aerodynamic parameters for energy harvesting in a gusty environment, and are therefore suggested as a basic objective function of an unmanned aerial vehicle design for such a flight strategy.
机译：固定翼微型飞行器通常在低空飞行，而低空经常暴露在动荡的环境中。狂风飙升是一种在如此复杂和随机领域中进行能量收集的飞行技术。提出的工作表明了为小型无人机开发非平稳环境的可行性和益处。得出了纵向动力学轨迹，在正弦风廓线的延长飞行中显示出显着的优势。执行主动控制的优化策略，目的是获得最有效的能量获取增益集。此外，三维多点模型证实了在更复杂的空间风场中进行能量收集的可行性。在主动比例控制下，确定不稳定空气动力学对沿飞行路径的总能量增益的影响。空气动力学导数描述了迎角变化和电梯偏转引起的对升力的贡献，被认为是大风环境下能量收集的最有力的空气动力学参数，因此被建议作为无人驾驶飞机设计的基本目标函数，用于这样的飞行策略。

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  • 来源
    《Journal of Aircraft》 |2018年第2期|741-754|共14页
  • 作者

    Gavrilovic Nikola; Benard Emmanuel; Pastor Philippe; Moschetta Jean-Marc;

  • 作者单位

    Inst Super Aeronaut & Espace SUPAERO, Dept Aerodynam Energet & Prop, 10 Ave Edouard Belin,BP 54032, F-31055 Toulouse 4, France;

    Inst Super Aeronaut & Espace SUPAERO, Dept Aerosp Vehicles Design & Control, 10 Ave Edouard Belin,BP 54032, F-31055 Toulouse 4, France;

    Inst Super Aeronaut & Espace SUPAERO, Dept Aerosp Vehicles Design & Control, 10 Ave Edouard Belin,BP 54032, F-31055 Toulouse 4, France;

    Inst Super Aeronaut & Espace SUPAERO, Dept Aerodynam Energet & Prop, 10 Ave Edouard Belin,BP 54032, F-31055 Toulouse 4, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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