Optimized method for Helmholtz resonator design formed by perforated boards
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Optimized method for Helmholtz resonator design formed by perforated boards
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
<a href="/en/project/TH04020263" target="_blank" >TH04020263: Research and Development of Constructional Composit Boards on The Basis of Cement and Organic Fibres for Application in Timber Structures and Building Industry</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
APPLIED ACOUSTICS
ISSN
0003-682X
e-ISSN
1872-910X
Volume of the periodical
184
Issue of the periodical within the volume
108341
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000694738600011
EID of the result in the Scopus database
2-s2.0-85112855183