| Full text | |
| Author(s): |
de Abreu, Gustavo Luiz C. M.
[1]
;
da Conceicao, Sanderson M.
[1]
;
Lopes, Jr., Vicente
[1]
;
Brennan, Michael John
[1]
;
Santana Alves, Marco Tulio
[2]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Paulista UNESP, Dept Mech Engn, BR-15385000 Ilha Solteira, SP - Brazil
[2] Univ Fed Uberlandia, Dept Mech Engn, BR-38400902 Uberlandia, MG - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 34, n. SI, p. 386-392, JAN 2012. |
| Web of Science Citations: | 6 |
| Abstract | |
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. (AU) | |
| FAPESP's process: | 08/05129-3 - Numerical Modeling, Intelligent Control and Experimental Evaluation of Adaptive Truss Structures using Axial Piezoelectric Actuators |
| Grantee: | Gustavo Luiz Chagas Manhães de Abreu |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |