Lumped Parameter Method for Prediction of Sound Absorption Coefficient of Loudspeaker Placed in Closed Enclosure.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0198174" target="_blank" >RIV/00216305:26220/26:0198174 - isvavai.cz</a>
Result on the web
<a href="https://www.eeict.cz/eeict_download/archiv/sborniky" target="_blank" >https://www.eeict.cz/eeict_download/archiv/sborniky</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Lumped Parameter Method for Prediction of Sound Absorption Coefficient of Loudspeaker Placed in Closed Enclosure.
Original language description
This paper presents a comparative analysis of a theoretical lumped parameter model used to compute the acoustic impedance of a loudspeaker membrane, which acts as a low-frequency absorber. The study aims to validate the theoretical predictions by examining the system’s mechanical and acoustic parameters. The influence of membrane compliance, mass, and damping on acoustic impedance is explored. Additionally, an impedance tube measurement setup is used to experimentally verify the theoretical results. The methodology, measurement procedure, and laboratory setup are described in detail. Results indicate that the lumped parameter approach provides a reliable estimation for specific frequency ranges, with deviations attributed to structural and material non-idealities.
Czech name
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Czech description
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Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings I of the 31th Student EEICT 2025 (General Papers)
ISBN
978-80-214-6153-6
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
Brno University of Technology, Faculty of Electrical Engineering and Communication
Place of publication
Brno
Event location
Brno
Event date
Apr 23, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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