Noise shielding using active acoustic metamaterials with electronically tunable acoustic impedance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F14%3A%230003036" target="_blank" >RIV/46747885:24220/14:#0003036 - isvavai.cz</a>
Result on the web
<a href="http://www.acoustics.asn.au/conference_proceedings/INTERNOISE2014/papers/p834.pdf" target="_blank" >http://www.acoustics.asn.au/conference_proceedings/INTERNOISE2014/papers/p834.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Noise shielding using active acoustic metamaterials with electronically tunable acoustic impedance
Original language description
Noise pollution has become one of the most serious problems of our society. Considerable part of unpleasant noise is transmitted into the interior of buildings through large vibrating planar structures - windows with poor noise-isolation properties caused by their low flexural rigidity. In this Paper, we demonstrate and analyze a noise shielding using an active acoustic metamaterial (AAMM) with electronically tunable acoustic impedance. The AAMM consists of a curved glass plate with attached piezoelectric Macro-Fiber Composite (MFC) actuators shunted by negative capacitor (NC) circuits. Using this approach, it is possible to electronically control the effective elasticity of the MFC actuators and, therefore, the flexural rigidity of the composite structure of the AAMM. Key features that control the acoustic impedance of the AAMM have been analyzed on a simplified analytical model. Frequency dependence of the acoustic impedance and the acoustic transmission loss through the AAMM are mea
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JA - Electronics and optoelectronics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA13-10365S" target="_blank" >GA13-10365S: Planar acoustic metamaterials with the active control of acoustic impedance</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014
ISBN
9780909882037
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
1-9
Publisher name
Australian Acoustical Society
Place of publication
Melbourne, Australia
Event location
Melbourne, Australia
Event date
Jan 1, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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