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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F08%2F1279" target="_blank" >GA101/08/1279: Moderní metody potlačování hluku a vibrací pomocí piezoelektrických materiálů</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

COMSOL Conference 2012 Milan Proceedings

ISBN

978-0-9839688-7-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

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Místo vydání

Milan, Italy

Místo konání akce

Milan, Italy

Datum konání akce

1. 1. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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