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Automatic Load Alleviation Simulation During Boom Refueling for UAV

Yaohong Qu, Ziquan Yu, Youmin Zhang

Abstract


In recent years, a number of algorithms of automatic load alleviation (ALA) for UAV boom refueling were developed, but most works are usually conducted without considering the force caused by the steering angle of spherical joint. Aimed at the problem, this paper proposes a method of fractional order sliding-mode control to restrict the force caused by the steering angle of spherical joint. Firstly, considering nonlinear characteristics, a refueling boom model is built. Secondly, a force model and reference command generator is constructed. Then, a control law based on fractional order sliding-mode control is designed to restrict the force caused by the steering angle of spherical joint using the variable structure control theory and the Lyapunov stability theory. Finally, simulation is carried out to verify the designed control law. Simulations show that the proposed fractional order slidingmode controller achieves good performance.

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References


Nalepka J P, Hinchman J L. Automated aerial refueling: extending the

effectiveness of unmanned air vehicles. AIAA Modeling and Simulation Technologies Conference and Exhibit. 2005: 15-18

Jin Z, Shima T, Schumacher C J. Optimal scheduling for refueling multiple autonomous aerial vehicles. IEEE Transactions on Robotics, 2006, 22(4): 682-693.

Dong X, Xu Y, Chen B. Progress and Challenges in Automatic Aerial Refueling. Journal of Air Force Engineering University (Natural Science Edition), 2008, 6: 002.

Crowdis C O, Gates W A, Higgs J T, et al. Aerial refueling boom with translating pivot. U.S. Patent 5, 996, 939. 1999-12-7.

Qu Y H, Cheng L S, Qiu J. Application of non-cancellation decoupling in boom refueling control. International Conference on Mechatronics and Automation, 2009. pp. 4203-4207.

Von Thal G, Roberts G A. Boom load alleviation using visual means. U.S. Patent 6, 651, 933. 2003-11-25.

Dillsaver M, Cesnik C, Kolmanovsky I V. Gust load alleviation control for very flexible aircraft. AIAA Atmospheric Flight Mechanics Conference. 2011.

Andersen P B. Load alleviation on wind turbine blades using variable airfoil geometry (2D and 3D study). Technical University of Denmark, 2005.

Buhl T, Bak D C, Gaunaa M, et al. Load alleviation through adaptive trailing edge control surfaces. Adapwing overview. 2007 European Wind Energy Conference and Exhibition. 2007: 20-23.

Qu Y H, Wu J Z, Tian Q C, et al. Autonomous Alleviating Loads of

boom air refueling. The 32nd Chinese Control Conference (CCC) 2013,

pp. 2407-2410.

Lenoir L, Kamwa I, Dessaint L A. Overload alleviation with preventive corrective static security using fuzzy logic. IEEE Transactions on Power Systems, 2009, 24(1): 134-145.

Mortensen A L. Improved load alleviation capability for the KC-135. Air Force Institute of Technology, 1997.

Monje C A, Chen Y Q, Vinagre B M, et.al Fractional-Order Systems

and Controls: Fundamentals and Applications. New York: Springer, 2010.

Chao H, Luo Y, Di L, Chen Y Q. Roll-channel fractional order controller design for a small fixed-wing unmanned aerial vehicle[J]. Control Engineering Practice, 2010, 18(7): 761-772.

Deng L W. Song S M. Stabilization of fractional order hyperchaotic systems with uncertainties via output feedback sliding mode control. Journal of Harbin Institute Technology.




DOI: http://dx.doi.org/10.21535%2FProICIUS.2015.v11.705

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