Determination of resonant frequencies of nanofibrous membrane by highspeed camera

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F16%3A00000772" target="_blank" >RIV/46747885:24220/16:00000772 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24620/16:00000772

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of resonant frequencies of nanofibrous membrane by highspeed camera

Popis výsledku v původním jazyce

Nanofibrous layer performed as a membrane is capable of vibrating at low frequencies due to its small interfibrous spaces and planar arrangement brought into forced vibrations upon impact of sound waves of low frequency. The resonance of the nanofibrous elements allows acoustic energy to be converted into thermal energy. In this paper, a nanofibrous layer was produced by an electrospinning process from the water solution of polyvinyl alcohol (PVA). The PVA nanofibrous membranes of two different fiber diameters were made and the effect of membrane resonance has been studied. For a purpose of resonance and sound absorption properties of nanofibrous membrane, the two methods have been used. The optical method containing high-speed digital camera has been used for resonant frequencies of nanofibrous membrane determination. Two-microphone Impedance Measurement Tube Type 4206 was used to measure the sound absorption coefficient. Moreover, the nanofiber diameter of membrane has been evaluated.

Název v anglickém jazyce

Determination of resonant frequencies of nanofibrous membrane by highspeed camera

Popis výsledku anglicky

Nanofibrous layer performed as a membrane is capable of vibrating at low frequencies due to its small interfibrous spaces and planar arrangement brought into forced vibrations upon impact of sound waves of low frequency. The resonance of the nanofibrous elements allows acoustic energy to be converted into thermal energy. In this paper, a nanofibrous layer was produced by an electrospinning process from the water solution of polyvinyl alcohol (PVA). The PVA nanofibrous membranes of two different fiber diameters were made and the effect of membrane resonance has been studied. For a purpose of resonance and sound absorption properties of nanofibrous membrane, the two methods have been used. The optical method containing high-speed digital camera has been used for resonant frequencies of nanofibrous membrane determination. Two-microphone Impedance Measurement Tube Type 4206 was used to measure the sound absorption coefficient. Moreover, the nanofiber diameter of membrane has been evaluated.

Druh

D - Stať ve sborníku

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

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2016 - Conference Proceedings, 8th International Conference on Nanomaterials - Research and Application

ISBN

978-808729471-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

251-256

Název nakladatele

TANGER Ltd.

Místo vydání

Ostrava, Czech Republic

Místo konání akce

Brno

Datum konání akce

1. 1. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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