Glass plates noise transmission suppression by means of distributed piezoelectric composite actuators shunted by an active circuit

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F12%3A%230002168" target="_blank" >RIV/46747885:24220/12:#0002168 - isvavai.cz</a>

Result on the web

<a href="http://www.comsol.com/offers/conference2012papers/papers/presentation/area/piezoelectric/id/13449/" target="_blank" >http://www.comsol.com/offers/conference2012papers/papers/presentation/area/piezoelectric/id/13449/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Glass plates noise transmission suppression by means of distributed piezoelectric composite actuators shunted by an active circuit

Original language description

This paper analyzes the possibility of suppression the sound transmitted through glass windows using piezoelectric actuators shunted by an active electronic circuit. We propose a simple way to increase the bending stiffness of the glass plate which results in an increase in reflected acoustic pressure and in a decrease in transmitted acoustic pressure. The method uses Piezoelectric Macro Fiber Composite (MFC) actuators which are distributed on the glass surface. They are shunted by active electronic circuits with a Negative Capacitance (NC) which control the effective elastic parameters of the piezoelectric material. Thus, the actuators are effectively stiffened and the effective bending stiffness of the whole system could be increased. The sound shielding efficiency of the glass plate is measured by the acoustic Transmission Loss (TL). The effect of the shunted NC circuit and glass plate geometry on the TL is analyzed using Finite Element Method (FEM). Results show that it is possible

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BI - Acoustics and oscillation

OECD FORD branch

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Project

<a href="/en/project/GA101%2F08%2F1279" target="_blank" >GA101/08/1279: Modern methods for noise and vibration suppression using piezoelectric materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

COMSOL Conference 2012 Milan Proceedings

ISBN

978-0-9839688-7-0

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

1-6

Publisher name

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Place of publication

Milan, Italy

Event location

Milan, Italy

Event date

Jan 1, 2012

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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