Modeling and docking control of UAV aerial recovery in form of telescopic boom

  • Zikang SU ,
  • Zhongnan XU ,
  • Chuntao LI ,
  • Haitong CHEN ,
  • Honglun WANG
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  • 1.College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
    2.School of Automation Science and Electrical Engineering,Beihang University,Beijing 100191,China
E-mail: zk_su@nuaa.edu.cn

Received date: 2021-09-02

  Revised date: 2021-10-11

  Accepted date: 2021-11-25

  Online published: 2021-12-01

Supported by

National Natural Science Foundation of China(61903190);Aeronautical Science Foundation(2019ZA052006);Fundamental Research Funds for the Central Universities(NT2020005);Natural Science Foundation of Jiangsu Province of China(BK20190401);Project Funded by China Postdoctoral Science Foundation(2020M681588);Jiangsu Postdoctoral Research Funding Program(2021K428C);Foundation of Science and Technology on UAV Laboratory(2022-JCJQ-LB-071)

Abstract

To handle the problem of aerial recovery of small fixed-wing Unmanned Aerial Vehicle (UAV) without reliable land-based or sea-based landing platforms, a modeling and docking control method for grabbing aerial recovery with the telescopic boom is proposed. Firstly, inspired by the flying boom aerial refueling technology, a UAV recovery method based on telescopic boom grabbing is proposed. An affine nonlinear model for telescopic boom aerial recovery is constructed using the mass projection method of rigid body rotational inertia and the Lagrangian method. Secondly, the aerodynamic characteristic of the telescopic boom under the influence of tailing vortex and constant wind disturbance is analyzed. Thirdly, a finite-time convergence nonsingular fast terminal sliding mode disturbance observer is designed to accurately estimate the lumped disturbances including the effects of the turbulence related items and the unmeasurable transient model disturbances in the three channels of the telescopic boom. With the feed-forward compensations of these lumped disturbances, a disturbance observation based nonsingular fast terminal sliding mode docking control method is proposed to achieve rapid and accurate aerial docking between the telescopic boom and UAVs with multiple turbulences. Therewith, Stability of the closed-loop system is discussed with Lyapunov analysis. Finally, the simulation results show that the proposed method has higher control accuracy and better anti-disturbance ability.

Cite this article

Zikang SU , Zhongnan XU , Chuntao LI , Haitong CHEN , Honglun WANG . Modeling and docking control of UAV aerial recovery in form of telescopic boom[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(1) : 326315 -326315 . DOI: 10.7527/S1000-6893.2021.26315

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