Design of the Sound Absorption Coefficient of the Noise Barrier Surface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F13%3A00211509" target="_blank" >RIV/68407700:21720/13:00211509 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.magnanimitas.cz/03-02" target="_blank" >http://www.magnanimitas.cz/03-02</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Design of the Sound Absorption Coefficient of the Noise Barrier Surface

Popis výsledku v původním jazyce

The purpose of this paper is to verify whether the image sources method used for the calculation of the sound wave reflected from a vertical obstacle is precise enough to be used in noise mapping. Numerical modelling with the boundary element method wasused as a tool for the verification of the method precision. The insertion loss of the obstacle was calculated with the BEM in many receivers. Two variants of sound absorption coefficient of the noise barrier surface were included in the calculation. Results obtained by the BEM calculations were fitted with the quadratic curve and compared with the values obtained by the image sources method. It was concluded that the image sources method is on the safe side. Nevertheless, the deviation on the safe sidewas acceptable.

Název v anglickém jazyce

Design of the Sound Absorption Coefficient of the Noise Barrier Surface

Popis výsledku anglicky

The purpose of this paper is to verify whether the image sources method used for the calculation of the sound wave reflected from a vertical obstacle is precise enough to be used in noise mapping. Numerical modelling with the boundary element method wasused as a tool for the verification of the method precision. The insertion loss of the obstacle was calculated with the BEM in many receivers. Two variants of sound absorption coefficient of the noise barrier surface were included in the calculation. Results obtained by the BEM calculations were fitted with the quadratic curve and compared with the values obtained by the image sources method. It was concluded that the image sources method is on the safe side. Nevertheless, the deviation on the safe sidewas acceptable.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

AD ALTA: Journal of Interdisciplinary Research

ISSN

1804-7890

e-ISSN

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Svazek periodika

3

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

114-117

Kód UT WoS článku

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EID výsledku v databázi Scopus

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