Models of Sound Attenuation in Homogeneous Materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00373545" target="_blank" >RIV/68407700:21110/22:00373545 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0081545" target="_blank" >https://doi.org/10.1063/5.0081545</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0081545" target="_blank" >10.1063/5.0081545</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Models of Sound Attenuation in Homogeneous Materials

Popis výsledku v původním jazyce

Since noise is a pervasive part of the environment we live in, building acoustics is very important discipline that helps protecting inhabitants against excessive noise (sound) from the environment. Development of acoustic building elements is a complex and cost demanding process involving material production, building up a testing construction, performing a testing procedure and evaluation of the test results in the last step. From this point of view, computational modelling represents an effective tool that might speed up while making it even cheaper. This paper aims at summarization of proper models and techniques for description of sound attenuation in homogeneous building materials. Besides classical acoustic models obeying the power law, also mechanical models treating sound as acoustic waves are presented. These models, derived from Navier-Cauchy equations, seem to be promising when sound attenuation in form of Rayleigh's damping is included. Heterogeneous materials can be solved this way as well when homogenization techniques for estimation of effective properties of homogenous equivalents are applied. Some practical applications of the models are referred to prove their applicability.

Název v anglickém jazyce

Models of Sound Attenuation in Homogeneous Materials

Popis výsledku anglicky

Since noise is a pervasive part of the environment we live in, building acoustics is very important discipline that helps protecting inhabitants against excessive noise (sound) from the environment. Development of acoustic building elements is a complex and cost demanding process involving material production, building up a testing construction, performing a testing procedure and evaluation of the test results in the last step. From this point of view, computational modelling represents an effective tool that might speed up while making it even cheaper. This paper aims at summarization of proper models and techniques for description of sound attenuation in homogeneous building materials. Besides classical acoustic models obeying the power law, also mechanical models treating sound as acoustic waves are presented. These models, derived from Navier-Cauchy equations, seem to be promising when sound attenuation in form of Rayleigh's damping is included. Heterogeneous materials can be solved this way as well when homogenization techniques for estimation of effective properties of homogenous equivalents are applied. Some practical applications of the models are referred to prove their applicability.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/FV40054" target="_blank" >FV40054: Využití recyklovaných pneumatik pro výrobu akustických izolačních prvků</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings

ISBN

978-0-7354-4182-8

ISSN

1551-7616

e-ISSN

1551-7616

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

AIP Publishing LLC

Místo vydání

Melville (NY)

Místo konání akce

Rhodos

Datum konání akce

17. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—