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JUN, D. NESPĚŠNÝ, O. PĚNČÍK, J. FIŠAROVÁ, Z. RUBINA, A.
Originální název
Optimized method for Helmholtz resonator design formed by perforated boards
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
Helmholtz resonator; Transfer matrix; Electro-acoustic analogy; Room acoustics; Sound absorption coefficient; Reverberation room
Autoři
JUN, D.; NESPĚŠNÝ, O.; PĚNČÍK, J.; FIŠAROVÁ, Z.; RUBINA, A.
Vydáno
18. 8. 2021
Nakladatel
ELSEVIER SCI LTD
Místo
OXFORD
ISSN
0003-682X
Periodikum
APPLIED ACOUSTICS
Ročník
184
Číslo
108341
Stát
Spojené království Velké Británie a Severního Irska
Strany od
1
Strany do
11
Strany počet
URL
https://doi.org/10.1016/j.apacoust.2021.108341
BibTex
@article{BUT171238, author="David {Jun} and Ondřej {Nespěšný} and Jan {Pěnčík} and Zuzana {Fišarová} and Aleš {Rubina}", title="Optimized method for Helmholtz resonator design formed by perforated boards", journal="APPLIED ACOUSTICS", year="2021", volume="184", number="108341", pages="1--11", doi="10.1016/j.apacoust.2021.108341", issn="0003-682X", url="https://doi.org/10.1016/j.apacoust.2021.108341" }