Resonance of acoustic multi-membrane system

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F09%3A%230000508" target="_blank" >RIV/46747885:24410/09:#0000508 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Resonance of acoustic multi-membrane system
Original language description
This paper deals with the acoustic behavior of a flexible porous material with resonant nanofibrous layer. The resonance effect of nanofibrous layer has been studied. The resonance frequency of acoustic system has been theoretical derived from the theoryof the linear electrical circuit. The results will be compared with the experimental findings. The material formed from different number of nanofibrous layers is valued in comparison with the same number of nanofibrous layers damped by longitudinal laidnonwovens. The sound absorption coefficient increases with number of resonant layers and porous material using. Two-microphone Impedance Measurement Tube Type 4206 was used to measure the absorption coefficient in the frequency range 50Hz to 6,4kHz.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Project
<a href="/en/project/GP106%2F07%2FP044" target="_blank" >GP106/07/P044: Transport and absorption of sound in nanofibres assemblies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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