Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls
The article shows the influence of physical-mechanical properties (density, modulus of elasticity, and coefficient of Poisson) in the identification of the coincidence critical frequency in the study of the sound isolation of a ceramic solid brick masonry wall. A data-base of parameters determined i...
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ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
2008
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ojs-article-37472008-11-21T23:32:09Z Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls Influência de propriedades físico-mecânicas para a determinação da freqüência de coincidência no isolamento sonoro de paredes de alvenaria Paixão, Dinara Xavier da Gerges, Samir Nagi Yousri Isolamento acústico; Perda de transmissão; Conforto; Alvenaria The article shows the influence of physical-mechanical properties (density, modulus of elasticity, and coefficient of Poisson) in the identification of the coincidence critical frequency in the study of the sound isolation of a ceramic solid brick masonry wall. A data-base of parameters determined in laboratory and obtained in the literature was created for carrying out computational simulation using a software that employs Energy Statistical Analysis. The computational simulation and experimental results were compared, based on the ISO 140 standard. The most influential parameter is the density, both for the analysis of masonry as an isotropic or orthotropic material. . Este artigo mostra a influência de propriedades físico-mecânicas, tais como densidade, módulo de elasticidade e coeficiente de Poisson, na identificação da freqüência crítica de coincidência, para o estudo do isolamento sonoro de uma parede de alvenaria de tijolos maciços cerâmicos. Criou-se um banco de dados com parâmetros determinados em laboratório e obtidos na bibliografia para a execução de simulação computacional, com software que emprega Análise Estatística de Energia (SEA). Os resultados simulados foram comparados com os experimentais, baseado na norma ISO 140. Observou-se que o parâmetro mais influente é a densidade, tanto para a análise da alvenaria como material isotrópico ou ortotrópico. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-04-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/3747 Ambiente Construído; v. 7, n. 3 (2007); 143-157 Ambiente Construído; v. 7, n. 3 (2007); 143-157 Ambiente Construído; v. 7, n. 3 (2007); 143-157 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/3747/2100 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0 |
| institution |
Universidade Federal do Rio Grande do Sul |
| collection |
OJS |
| language |
por |
| format |
Online |
| author |
Paixão, Dinara Xavier da Gerges, Samir Nagi Yousri |
| spellingShingle |
Paixão, Dinara Xavier da Gerges, Samir Nagi Yousri Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls |
| author_facet |
Paixão, Dinara Xavier da Gerges, Samir Nagi Yousri |
| author_sort |
Paixão, Dinara Xavier da |
| title |
Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls |
| title_short |
Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls |
| title_full |
Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls |
| title_fullStr |
Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls |
| title_full_unstemmed |
Influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls |
| title_sort |
influence of the physical-mechanical properties in the establishment of the coincidence frequency in the sound isolation of masonry walls |
| description |
The article shows the influence of physical-mechanical properties (density, modulus of elasticity, and coefficient of Poisson) in the identification of the coincidence critical frequency in the study of the sound isolation of a ceramic solid brick masonry wall. A data-base of parameters determined in laboratory and obtained in the literature was created for carrying out computational simulation using a software that employs Energy Statistical Analysis. The computational simulation and experimental results were compared, based on the ISO 140 standard. The most influential parameter is the density, both for the analysis of masonry as an isotropic or orthotropic material. . |
| publisher |
ANTAC - Associação Nacional de Tecnologia do Ambiente Construído |
| publishDate |
2008 |
| url |
https://seer.ufrgs.br/ambienteconstruido/article/view/3747 |
| work_keys_str_mv |
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| _version_ |
1709370551700553728 |