Experimental verification of sound power determination methods based on radiation matrix.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00379474" target="_blank" >RIV/68407700:21230/24:00379474 - isvavai.cz</a>

Výsledek na webu

<a href="https://internoise2024.org/" target="_blank" >https://internoise2024.org/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental verification of sound power determination methods based on radiation matrix.

Popis výsledku v původním jazyce

The theoretical foundation of sound power determination from a sound radiating surface using volume velocity and acoustic radiation matrix (ARM) is well established in the literature. However, a detailed experimental investigation of the accuracy of this method over a wide frequency band has not been presented. In this study, the ARM method is analyzed thoroughly to identify factors that can affect the accuracy of the calculated sound power. To do so the acoustic radiation matrix is observed closely as this is the main parameter responsible for determining the sound power. Further experiments were performed to calculate the sound power using the ARM method and results were compared to those obtained using the ISO 9614–2 and Rayleigh’s Integral Method (RIM). Comparison of these results in wide frequency bands provides insight into the acoustic radiation matrix based on the assumptions made during the modeling of the ARM method. These insights are then used to improve the model’s accuracy with the motivation to apply this method to the in-situ measurement of the large building facades.

Název v anglickém jazyce

Experimental verification of sound power determination methods based on radiation matrix.

Popis výsledku anglicky

The theoretical foundation of sound power determination from a sound radiating surface using volume velocity and acoustic radiation matrix (ARM) is well established in the literature. However, a detailed experimental investigation of the accuracy of this method over a wide frequency band has not been presented. In this study, the ARM method is analyzed thoroughly to identify factors that can affect the accuracy of the calculated sound power. To do so the acoustic radiation matrix is observed closely as this is the main parameter responsible for determining the sound power. Further experiments were performed to calculate the sound power using the ARM method and results were compared to those obtained using the ISO 9614–2 and Rayleigh’s Integral Method (RIM). Comparison of these results in wide frequency bands provides insight into the acoustic radiation matrix based on the assumptions made during the modeling of the ARM method. These insights are then used to improve the model’s accuracy with the motivation to apply this method to the in-situ measurement of the large building facades.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10307 - Acoustics

Projekt

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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 the 53rd International Congress and Exposition on Noise Control Engineering, Nantes, France, 25-29 August 2024

ISBN

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ISSN

0736-2935

e-ISSN

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Počet stran výsledku

10

Strana od-do

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Název nakladatele

Institute of Noise Control Engineering of the USA

Místo vydání

Washington, DC

Místo konání akce

Nantes

Datum konání akce

25. 8. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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