Scientific Reports (May 2024)

Control of large amplitude limit cycle of a multi-dimensional nonlinear dynamic system of a composite cantilever beam

  • Lin Sun,
  • Xu Dong Li,
  • Xiaopei Liu

DOI
https://doi.org/10.1038/s41598-024-61661-8
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 13

Abstract

Read online

Abstract For the first time, a control strategy based on Fuzzy Sliding Mode Control is implemented in the control of a large amplitude limit cycle of a composite cantilever beam in a multi-dimensional nonlinear form. In the dynamic model establishment of the investigated structure, the higher-order shearing effect is applied, as well as the second-order discretization. Numerical simulation demonstrates that a multi-dimensional nonlinear dynamic system of the investigated structure is demanded for accurate estimation of large amplitude limit cycle responses. Therefore, a control strategy is employed to effectively suppress such responses of the beam in multi-dimensional nonlinear form.