Effective acoustic absorption of ETFE membranes and cushions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU150227" target="_blank" >RIV/00216305:26110/24:PU150227 - isvavai.cz</a>

Výsledek na webu

<a href="https://dael.euracoustics.org/confs/fa2023/data/index.html" target="_blank" >https://dael.euracoustics.org/confs/fa2023/data/index.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.61782/fa.2023.0631" target="_blank" >10.61782/fa.2023.0631</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effective acoustic absorption of ETFE membranes and cushions

Popis výsledku v původním jazyce

In this paper, we report on measurements of the acoustic absorption coefficient of ETFE membranes and cushions by two types of measurement approaches. The experimental results are compared with material simulations in ODEON® room acoustics ver.17. The absorption was determined via the assumption that the energy which passes through the foil can be considered as absorbed energy, and therefore can be measured in a transmission room facility based on an ISO 10140-2[1]. Also, the acoustic absorption was measured in a reverberant room, based on an ISO 354[2] test arrangement. Due to the high acoustic transparency of the membranes at low frequencies, the two approaches were adapted with the aim of minimizing measurement artifacts. The different results were compared and interpreted in view of getting insight into the physics of the absorption mechanisms and the reliability of the used measurement approaches.

Název v anglickém jazyce

Effective acoustic absorption of ETFE membranes and cushions

Popis výsledku anglicky

In this paper, we report on measurements of the acoustic absorption coefficient of ETFE membranes and cushions by two types of measurement approaches. The experimental results are compared with material simulations in ODEON® room acoustics ver.17. The absorption was determined via the assumption that the energy which passes through the foil can be considered as absorbed energy, and therefore can be measured in a transmission room facility based on an ISO 10140-2[1]. Also, the acoustic absorption was measured in a reverberant room, based on an ISO 354[2] test arrangement. Due to the high acoustic transparency of the membranes at low frequencies, the two approaches were adapted with the aim of minimizing measurement artifacts. The different results were compared and interpreted in view of getting insight into the physics of the absorption mechanisms and the reliability of the used measurement approaches.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Forum Acusticum 2023

ISBN

978-88-88942-67-4

ISSN

2221-3767

e-ISSN

—

Počet stran výsledku

6

Strana od-do

5341-5346

Název nakladatele

European Acoustics Association

Místo vydání

Turin

Místo konání akce

Torino

Datum konání akce

11. 9. 2023

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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