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- W3172510107 abstract "EnglishIn this presentation, the authors describe the research work developed during the last years at the Research Center in Construction Sciences – CICC, in the field of acoustics. Those works include theoretical and numerical studies as well as experimental work and technological research. This presentation briefly describes the numerical formulations developed for computing the airborne sound insulation and the structure-borne sound transmission provided by plane and curved partition elements, for evaluating of the acoustic pressure level within open and closed spaces generated by three-dimensional sources, for studying the sound pressure attenuation provided by acoustic barriers and for modelling the propagation of waves in solid and fluid layered media. Among the different numerical techniques developed in the CICC centre, this presentation enhances the definition of semianalytical solutions, the use of boundary elements formulations and the application of the method of fundamental solutions. In addition, this work presents the experimental work developed in acoustics, particularly those performed to propose technical construction solutions and to validate some of the numerical solutions developed at the CICC centre. portuguesNesta apresentacao descrevem-se os trabalhos de investigacao desenvolvidos nos ultimos anos no Centro de Investigacao em Ciencias da Construcao – CICC na area da Acustica. Incluem-se nestes trabalhos, estudos de caracter numerico, experimental e tecnologico. A apresentacao aborda os modelos numericos desenvolvidos para a avaliacao do isolamento a sons aereos e de percussao conferido por elementos de compartimentacao planos e curvos, a definicao do nivel sonoro produzido em espacos abertos e fechados por fontes sonoras tridimensionais, a propagacao de ondas em redor de barreiras e palas acusticas, e a propagacao de ondas em meios estratificados solidos e fluidos. De entre as tecnicas numericas utilizadas destacam-se as solucoes semi-analiticas, o metodo dos elementos fronteira e o metodo das solucoes fundamentais. Apresentam-se, tambem, os trabalhos experimentais desenvolvidos na area da acustica, destacando-se aqueles que visam dar resposta ao desenvolvimento tecnologico de solucoes construtivas e os que permitiram validar algumas daquelas solucoes numericas desenvolvidas no CICC." @default.
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- W3172510107 date "2008-01-01" @default.
- W3172510107 modified "2023-09-23" @default.
- W3172510107 title "Investigação científica na área da acústica: o trabalho desenvolvido no centro de investigação em ciências da construção - CICC" @default.
- W3172510107 hasPublicationYear "2008" @default.
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