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Steel and Composite Structures
  Volume 46, Number 1, January10 2023 , pages 107-114
DOI: https://doi.org/10.12989/scs.2023.46.1.107
 


Smart modified repetitive-control design for nonlinear structure with tuned mass damper
ZY Chen, Ruei-Yuan Wang, Yahui Meng and Timothy Chen

 
Abstract
    A new intelligent adaptive control scheme was proposed that combines observer disturbance-based adaptive control and fuzzy adaptive control for a composite structure with a mass-adjustable damper. The most important advantage is that the control structures do not need to know the uncertainty limits and the interference effect is eliminated. Three adjustable parameters in LMI are used to control the gain of the 2D fuzzy control. Binary performance indices with weighted matrices are constructed to separately evaluate validation and training performance using the revalidation learning function. Determining the appropriate weight matrix balances control and learning efficiency and prevents large gains in control. It is proved that the stability of the control system can be ensured by a linear matrix theory of equality based on Lyapunov's theory. Simulation results show that the multilevel simulation approach combines accuracy with high computational efficiency. The M-TMD system, by slightly reducing critical joint load amplitudes, can significantly improve the overall response of an uncontrolled structure.
 
Key Words
    adaptive system; complex structural control; lyapunov energy function; perturbation-based control
 
Address
ZY Chen, Ruei-Yuan Wang and Yahui Meng:School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China

Timothy Chen:California Institute of Technology, Pasadena, CA 91125, USA
 

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