Smart Structures and Systems

Volume 27, Number 6, 2021, pages 917-926

DOI: 10.12989/sss.2021.27.6.917

Smart structural stability and NN based intelligent control for nonlinear systems

Tim Chen , Y.C. Huang , C.C. Hung , Suzanne Frias , J.A. Muhammad , C.Y.J. Chen

Abstract

This paper has proposed an intelligent Evolutionary Bat Algorithm (afterward, EBA) Fuzzy NN (Neural Network) controller used to ensure the asymptotic simulation stability of a mathematics nonlinear system for a smart structure. The smart evolutionary fuzzy NN model adopts an NN numerical model and the linear differential inclusion (LDI) concept. Denotation of the nonlinear dynamics is constructed by transforming the nonlinear model into a multi-rule-based sector nonlinear form of mathematics linear numerical models, and implementing a new sufficient mathematics condition whereby the asymptotic simulation stability of the intelligent structure is guaranteed by the Lyapunov mathematics function, linear matrix inequality (LMI). The high frequency is also injected as an auxiliary to stabilize these nonlinear systems. According to the relaxed method injected with dithered auxiliary, the nonlinear system can be guaranteed stable by appropriately regulating the parameters. Finally, there is a numerical resultant example with simulation results which is designated in order to precisely demonstrate the advantages of the smart intelligent controller and the proposed control scheme compared to previous schemes.

Key Words

artificial intelligence; LMI; smart stability; automated design; nonlinear fuzzy control

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