Noise suppression in curved glass shells using macro-fiber-composite actuators studied by the means of digital holography and acoustic measurements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F15%3A00443787" target="_blank" >RIV/61389021:_____/15:00443787 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/15:#0003361 RIV/46747885:24510/15:#0001217

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4913624" target="_blank" >http://dx.doi.org/10.1063/1.4913624</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4913624" target="_blank" >10.1063/1.4913624</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Noise suppression in curved glass shells using macro-fiber-composite actuators studied by the means of digital holography and acoustic measurements

Popis výsledku v původním jazyce

The paper presents methods and experimental results of the semi-active control of noise transmission in a curved glass shell with attached piezoelectric macro fiber composite (MFC) actuators.The semi-active noise control is achieved via active elasticitycontrol of piezoelectric actuators by connecting them to an active electric shunt circuit that has a negative effective capacitance.Using this approach, it is possible to suppress the vibration of the glass shell in the normal direction with respect toits surface and to increase the acoustic transmission loss of the piezoelectric MFC-glass composite structure. The effect of the MFC actuators connected to the negative capacitance shunt circuit on the surface distribution of the normal vibration amplitude is studied using frequency-shifted digital holography (FSDH).The principle of the used FSDH method is described in the paper. The frequency dependence of the acoustic transmission loss through the piezoelectric MFC-glass composite

Název v anglickém jazyce

Noise suppression in curved glass shells using macro-fiber-composite actuators studied by the means of digital holography and acoustic measurements

Popis výsledku anglicky

The paper presents methods and experimental results of the semi-active control of noise transmission in a curved glass shell with attached piezoelectric macro fiber composite (MFC) actuators.The semi-active noise control is achieved via active elasticitycontrol of piezoelectric actuators by connecting them to an active electric shunt circuit that has a negative effective capacitance.Using this approach, it is possible to suppress the vibration of the glass shell in the normal direction with respect toits surface and to increase the acoustic transmission loss of the piezoelectric MFC-glass composite structure. The effect of the MFC actuators connected to the negative capacitance shunt circuit on the surface distribution of the normal vibration amplitude is studied using frequency-shifted digital holography (FSDH).The principle of the used FSDH method is described in the paper. The frequency dependence of the acoustic transmission loss through the piezoelectric MFC-glass composite

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

AIP ADVANCES

ISSN

2158-3226

e-ISSN

—

Svazek periodika

5

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

27132-27132

Kód UT WoS článku

000350545500032

EID výsledku v databázi Scopus

2-s2.0-84923371751