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Modelling and neural adaptive vibration control for three-dimensional Timoshenko beam with output restrictions and external disturbances

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  • Xueyan Xing
  • Jinkun Liu

Abstract

In this paper, the dynamic modelling and adaptive boundary control of a three-dimensional Timoshenko beam are presented for vibration suppression. In order to ensure that no modal information is left out, partial differential equations (PDEs) are employed to describe the nonlinear dynamic characteristics of the system by applying the extended Hamilton’s principle. Based on the established model, barrier Lyapunov functions (BLFs) are utilised for dealing with system output restrictions. For practical consideration, parameter uncertainties and external disturbances are also taken into account. Under the proposed neural adaptive control scheme, undesirable elastic vibration of the three-dimensional Timoshenko beam is restricted and constrained within given bounds even subject to external perturbations, without needing to know any system parameters. The system stability is proved by the Lyapunov’s direct method. The control performance is verified via using numerical simulations.

Suggested Citation

  • Xueyan Xing & Jinkun Liu, 2021. "Modelling and neural adaptive vibration control for three-dimensional Timoshenko beam with output restrictions and external disturbances," International Journal of Systems Science, Taylor & Francis Journals, vol. 52(9), pages 1850-1867, July.
    • Handle: RePEc:taf:tsysxx:v:52:y:2021:i:9:p:1850-1867
    DOI: 10.1080/00207721.2021.1871676
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