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Dynamics and control of single-line kites

机译:单线风筝的动力学和控制

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摘要

This paper presents a dynamic analysis of a single-line kite with two degrees of freedom. A Lagrangian formulation is used to write convenient equations of motion. The equilibrium states of the system and their stability are studied; Eigenvalues and eigenmodes are calculated by using linear theory. The stability in the parametric plane δ - W_0 is discussed, where δ defines the bridle geometry and W_0 is wind velocity. The system goes through a Hopf bifurcation and periodic branches of solutions appear. The orbits and their stability have been calculated numerically using Floquet theory and wind velocity seems to play an important role in their existence. Finally the kite response against gusts is considered and an open loop control system developed to keep the flight altitude invariant under changing atmospheric conditions. Modifying the bridle's geometry seems to be a convenient way to control a kite's performance.
机译:本文介绍了具有两个自由度的单线风筝的动态分析。拉格朗日公式用于编写方便的运动方程。研究了系统的平衡态及其稳定性。本征值和本征模是使用线性理论计算的。讨论了参数平面δ-W_0中的稳定性,其中δ定义了the形几何形状,W_0是风速。该系统经历霍普夫分叉,并且出现溶液的周期性分支。轨道及其稳定性已使用Floquet理论进行了数值计算,风速似乎在其存在中起着重要作用。最后,考虑了针对阵风的风筝响应,并开发了一种开环控制系统,以在变化的大气条件下保持飞行高度不变。修改the的几何形状似乎是控制风筝性能的便捷方法。

著录项

  • 来源
    《The Aeronautical Journal》 |2006年第1111期|p.615-621|共7页
  • 作者

    G. Sanchez;

  • 作者单位

    Dept Fisica Aplicada, ETSI Aeronauticos, Universidad Politecnica, Madrid, Spain;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空;
  • 关键词

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