System identification and active vibration control of a flexible structure
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/01/2012
|
Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Processo FAPESP: 08/05129-3 The aim of this paper is to illustrate the active control of vibration of a flexible structure using a model-based digital controller. The state-space model of the system is derived using a system identification technique known as the Observer/Kalman Filter Identification (OKID) method together with Eigensystem Realization Algorithm (ERA). Based on the measured response of the structure to a random input, an explicit state-space model of the equivalent linear system is determined. The model is used in a Linear Quadratic Regulator (LQR) to control the first two modes of vibration of a cantilever beam using a piezoelectric actuator/sensor pair. Experimental results demonstrate the efficacy of the proposed approach. |
Formato |
386-392 |
Identificador |
http://dx.doi.org/10.1590/S1678-58782012000500007 Journal of The Brazilian Society of Mechanical Sciences and Engineering. Rio de Janeiro Rj: Abcm Brazilian Soc Mechanical Sciences & Engineering, v. 34, p. 386-392, 2012. 1678-5878 http://hdl.handle.net/11449/9919 s1678-58782012000500007 WOS:000314536100007 s1678-58782012000500007-en.pdf |
Idioma(s) |
eng |
Publicador |
Abcm Brazilian Soc Mechanical Sciences & Engineering |
Relação |
Journal of the Brazilian Society of Mechanical Sciences and Engineering |
Direitos |
openAccess |
Palavras-Chave | #Observer/Kalman Filter Identification (OKID) #Eigensystem Realization Algorithm (ERA) #optimal vibration control #piezoelectric smart structures |
Tipo |
info:eu-repo/semantics/article |