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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2020, Vol. 41 ›› Issue (11): 623698-623698.doi: 10.7527/S1000-6893.2020.23698

• Special Topic of Guidance and Control Technology for Aerospace Vehicles • Previous Articles     Next Articles

Adaptive aeroservoelasticity suppression of hypersonic vehicles

PIAO Minnan1, CHEN Zhigang2, SUN Mingwei1, CHEN Zengqiang1   

  1. 1. College of Artificial Intelligence, Nankai University, Tianjin 300350, China;
    2. Science and Technology on Space Physics Laboratory, Beijing 100076, China
  • Received:2019-12-04 Revised:2020-01-15 Online:2020-11-15 Published:2020-03-06
  • Supported by:
    National Natural Science Foundation of China (61573197, 61973175, 51777013)

Abstract: A comprehensive control scheme combining active disturbance rejection control and an adaptive notch filter is proposed in this paper for the aeroservoelasticity suppression of hypersonic vehicles. For the strong coupling effects and uncertainties, active disturbance rejection control is employed to estimate and compensate the total disturbance in a fast manner. An adaptive notch filter is designed to suppress the flexible modes with unknown and time-varying frequencies and minimize the effect on the performance of the rigid-body control. Based on the characteristics of the aeroservoelasticity suppression problem, the performance requirements for the adaptive notch filter are proposed first. To meet these requirements, two schemes based on the recursive maximum likelihood algorithm, the individual and simultaneous adaptation schemes, respectively, are proposed to achieve direct estimation of multiple frequencies. An online supervision strategy is designed to improve the robustness of the adaptive algorithm under multiple perturbations. Extensive numerical simulations are conducted to compare the performance of these two schemes. Finally, simulations are performed on the flexible hypersonic vehicle model to validate the effectiveness of the proposed method.

Key words: hypersonic vehicles, aeroservoelasticity suppression, active disturbance rejection control, adaptive notch filters, direct estimation of multiple frequencies

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