Active vibration control using delayed resonant feedback


Autoria(s): Kim, Sang-Myeong; Brennan, Michael J.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

01/09/2013

Resumo

Delayed feedback (DF) control is a well-established technique to suppress single frequency vibration of a non-minimum phase system. Modal control is also a well-established technique to control multiple vibration modes of a minimum phase system. In this paper these techniques are combined to simultaneously suppress multiple vibration modes of a non-minimum phase system involving a small time delay. The control approach is called delayed resonant feedback (DRF) where each modal controller consists of a modal filter to extract the target mode signal from the vibration response, and a phase compensator to account for the phase delay of the mode. The methodology is first discussed using a single mode system. A multi-mode system is then studied and experimental results are presented to demonstrate the efficacy of the control approach for two modes of a beam. It is shown that the system behaves as if each mode under control has a dynamic vibration absorber attached to it, even though the actuator and the sensor are not collocated and there is a time delay in the control system. © 2013 IOP Publishing Ltd.

Identificador

http://dx.doi.org/10.1088/0964-1726/22/9/095013

Smart Materials and Structures, v. 22, n. 9, 2013.

0964-1726

1361-665X

http://hdl.handle.net/11449/76430

10.1088/0964-1726/22/9/095013

WOS:000323832000044

2-s2.0-84884537879

Idioma(s)

eng

Relação

Smart Materials and Structures

Direitos

closedAccess

Palavras-Chave #Active vibration controls #Dynamic vibration absorber #Minimum-phase systems #Non-minimum phase systems #Resonant feedback #Single-mode systems #Vibration response #Well-established techniques #Time delay #Delay control systems
Tipo

info:eu-repo/semantics/article