Optimized method for Helmholtz resonator design formed by perforated boards

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU140660" target="_blank" >RIV/00216305:26110/21:PU140660 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.apacoust.2021.108341" target="_blank" >https://doi.org/10.1016/j.apacoust.2021.108341</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apacoust.2021.108341" target="_blank" >10.1016/j.apacoust.2021.108341</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimized method for Helmholtz resonator design formed by perforated boards

Popis výsledku v původním jazyce

The article focuses on an optimized method for Helmholtz resonators (HR) design to be used in room acoustics. They are resonators in the form of acoustic wall facings and ceilings formed by perforated boards with circular apertures. In order to verify available calculation methods for sound absorption coefficient, an experiment was performed in a reverberation room. Several variants of the internal absorbent and internal arrangement of the HR cavity for the experiment were measured. The measured data were compared with two available methods of sound absorption coefficient calculation for normal incidence using a 1D transfer matrix and electro-acoustic analogy. The calculation optimization was performed with the use of the measured data with the aim to reach better conformity of calculated courses of the sound absorption coefficient and the reverberation room measurements. (C) 2021 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Optimized method for Helmholtz resonator design formed by perforated boards

Popis výsledku anglicky

The article focuses on an optimized method for Helmholtz resonators (HR) design to be used in room acoustics. They are resonators in the form of acoustic wall facings and ceilings formed by perforated boards with circular apertures. In order to verify available calculation methods for sound absorption coefficient, an experiment was performed in a reverberation room. Several variants of the internal absorbent and internal arrangement of the HR cavity for the experiment were measured. The measured data were compared with two available methods of sound absorption coefficient calculation for normal incidence using a 1D transfer matrix and electro-acoustic analogy. The calculation optimization was performed with the use of the measured data with the aim to reach better conformity of calculated courses of the sound absorption coefficient and the reverberation room measurements. (C) 2021 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

<a href="/cs/project/TH04020263" target="_blank" >TH04020263: Výzkum a vývoj systému konstrukčních kompozitních desek na bázi cementu a organických vláken pro dřevostavby a občanskou výstavbu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

APPLIED ACOUSTICS

ISSN

0003-682X

e-ISSN

1872-910X

Svazek periodika

184

Číslo periodika v rámci svazku

108341

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000694738600011

EID výsledku v databázi Scopus

2-s2.0-85112855183