| Full text | |
| Author(s): |
Gustavo Luiz C. M. de Abreu
[1]
;
Sanderson M. da Conceição
[2]
;
Vicente Lopes Jr.
[3]
;
Michael John Brennan
[4]
;
Marco Túlio Santana Alves
[5]
Total Authors: 5
|
| Affiliation: | [1] e-mail
[2] e-mail
[3] e-mail
[4] Univ. Estadual Paulista - UNESP. Department of Mechanical Engineering - Brasil
[5] Univ. Federal de Uberlândia - UFU. Department of Mechanical Engineering - Brasil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 34, p. 386-392, 2012-00-00. |
| 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 |