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| HAL: hal-00514425, version 1 |
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| Continuously distributed control of plates by electric networks with PZT actuators |
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Stefano Vidoli 1Francesco Dell'Isola 1, 2 |
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| (2010-09-02) |
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| In this paper it is described a novel device aiming to control the mechanical vibrations of plates by means of a set of interconnected piezoelectric actuators. They are uniformly embedded in the plate and connect every node of an electric network to ground thus playing the two-fold role of capacitive element in the electric net and of couple suppliers. A mathematical model is introduced to describe the behavior of the system the time evolution of which is obtained as the solution of a system of partial differential equations. A self-resonance criterion is established which assures the possibility of electro-mechanical energy exchange. Finally the problem of vibration control in simply supported and clamped plates is addressed: the optimal net-impedance is determined. The results indicate that the proposed device can improve the performances of piezoelectric actuation. |
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| 1: | Dipartimento di Ingegneria Strutturale e Geotecnica |
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Universita di Roma "La Sapienza" |
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| 2: | Laboratorio Strutture e Materiali Intelligenti - Fondazione Tullio Levi-Civita |
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Cisterna di Latina |
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| Subject | : | Engineering Sciences/Mechanics |
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| hal-00514425, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00514425 | |
| oai:hal.archives-ouvertes.fr:hal-00514425 | |
| From: Francesco Dell'Isola | |
| Submitted on: Thursday, 2 September 2010 13:17:50 | |
| Updated on: Thursday, 2 September 2010 13:21:49 | |
