Optimal Placement of Piezoelectric Macro Fiber Composite Patches on Composite Plates for Vibration Suppression
| Autor: | Odair Menuzzi, Jun Sergio Ono Fonseca, Eduardo André Perondi, Eduardo Padoin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Engineering
macro fiber composite Shell (structure) Aerospace Engineering Ocean Engineering Linear-quadratic regulator Orthotropic material Parametric optimization Control theory General Materials Science lcsh:QC120-168.85 Civil and Structural Engineering business.industry Mechanical Engineering Estruturas (Engenharia) Structural engineering Piezoelectricity Materiais piezoelétricos Vibration Controllability Controle ótimo Mechanics of Materials Automotive Engineering lcsh:Descriptive and experimental mechanics laminated composite material Electric potential LQR optimal control lcsh:Mechanics of engineering. Applied mechanics lcsh:TA349-359 business Actuator |
| Zdroj: | Latin American Journal of Solids and Structures, Volume: 12, Issue: 5, Pages: 925-947, Published: MAY 2015 Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Latin American Journal of Solids and Structures v.12 n.5 2015 Latin American journal of solids and structures Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM Latin American Journal of Solids and Structures, Vol 12, Iss 5, Pp 925-947 |
| Popis: | This work presents a new methodology for the parametric optimization of piezoelectric actuators installed in laminated composite structures, with the objective of controlling structural vibrations. Problem formulation is the optimum location of a Macro Fiber Composite (MFC) actuator patch by means the maximization of the controllability index. The control strategy is based on a Linear Quadratic Regulator (LQR) approach. For the structural analysis, the modeling of the interaction between the MFC and the structure is made taking into account the active material as one of the orthotropic laminate shell layers. The actuation itself is modeled as an initial strain arising from the application of an electric potential which deforms the rest of the structure. Thereby, modeling the electric field and the electromechanical coupling within the actuator is avoided because these effects are considered analytically. Numerical simulations show that the structural model presents good agreement with numerical and experimental results. Furthermore, the results show that optimizing the location of the actuator in the structure helps the control algorithm to reduce induced structural vibration. |
| Databáze: | OpenAIRE |
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