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Active vibration control of composite plate with optimal placement of piezoelectric patches |
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| Authors: | K Bendine F B Boukhoulda B Haddag M Nouari |
| Affiliation: | 1. Structures and Solid Mechanical Laboratory, Mechanical department, Djillali Liabès University of Sidi Bel-Abbès, BP 89, Cité Ben M'hidi, Sidi Bel-Abbès, Algeria;2. University of Lorraine, Laboratoire d'Energétique et de Mécanique Théorique et Appliquée, LEMTA CNRS-UMR 7563, Mines Nancy, Mines Albi, GIP-InSIC, 27 rue d'Hellieule, Saint-Dié-des-Vosges, France |
| Abstract: | The active vibration control of a composite plate using discrete piezoelectric patches has been investigated. Based on first order shear deformation theory, a finite element model with the contributions of piezoelectric sensor and actuator patches to the mass and stiffness of the plate was used to derive the state space equation. A global optimization based on LQR performance is developed to find the optimal location of the piezoelectric patches. Genetic algorithm is adopted and implemented to evaluate the optimal configuration. The piezoelectric actuator provides a damping effect on the composite plate by means of LQR control algorithm. A correlation between the patches number and the closed loop damping coefficient is established. |
| Keywords: | Vibration control composite plate piezoelectric patches LQR control genetic algorithm |