This paper presents the design method of an adaptive fuzzy controller (AFC) for a magnetorheological elastomer (MRE) vibration isolation system with time-varying sinusoidal excitations. In the first place, Kelvin model of MRE isolator without application of driving current is obtained by acceleration sweep experiments on a shake table, which establishes a foundation for the design of adaptive law. Secondly, a semi-active AFC with factor adjustment mechanism is designed based on the transmissibility curves under zero magnetic application and semi-active fuzzy control theory, which is independent of the isolation system model and adaptive to time-varying excitations in amplitudes and frequencies without adopting complicated fast Fourier transformation (FFT) analyzer. Finally, acceleration responses of the system with AFC to time-varying sinusoidal excitations are evaluated by numerical simulation and physical experiments, which indicate that the AFC could maintain satisfying control effect in the presence of time-varying sinusoidal excitations in amplitudes and frequencies, and is also more optimal than conventional fuzzy controller (FC).
Adaptive fuzzy control of a magnetorheological elastomer vibration isolation system with time-varying sinusoidal excitations
2019-09-01
Fu , J , Bai , J , Lai , J , Li , P , Yu , M & Lam , H K 2019 , ' Adaptive fuzzy control of a magnetorheological elastomer vibration isolation system with time-varying sinusoidal excitations ' , JOURNAL OF SOUND AND VIBRATION , vol. 456 , pp. 386-406 . https://doi.org/10.1016/j.jsv.2019.05.046
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC: | 629 |
Vibration characteristics of smart sandwich beams embedded with magnetorheological elastomer cores
British Library Conference Proceedings | 2007
|Hydraulic hybrid vehicle vibration isolation control with magnetorheological fluid mounts
Online Contents | 2013
|Semi-Active Vibration Isolation Using Magnetorheological Isolators
Online Contents | 2005
|