2014-06-232014-06-232007-05-31GUEDES, Reginaldo Cascaes. Projeto e construção de uma câmara reverberante em escala reduzida para a caracterização acústica de materiais absorventes. 2007. 109 f. Dissertação (Mestrado em Engenharia Mecânica) – Programa de Pós-Graduação em Engenharia Mecânica, Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2007. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/5110. Acesso em:.https://repositorio.ufpa.br/handle/2011/5110In the area of Acoustics, concerning the last decades, a significant growth has been observed in the demand for data regarding not only the absorbing characteristics of acoustical materials, but also the usage of numerical methods which are able to represent the acoustical behavior of real systems. These real systems demand a significant infrastructure, which means a great deal of investments. Thus, in order to attend such demands for new data, to allow the development of research regarding the sound absorbing characteristics of regional materials and to develop practical classes on acoustics, both for graduate and post-graduate students, this work presents all the information regarding the project and construction of a scaled reverberant chamber (1:6 of a 200 m3 real chamber). Besides, a methodology is presented regarding the qualification and adequacy of the internal acoustic field, based on the guidance of ISO-354. On the other hand, experimental results for the miniaturized chamber are presented and discussed, which characterize and validate the usage of the coconut fiber panels, developed by the Acoustics and Vibration Group of the Federal University of Pará. Finally, numerical results, based on Ray Tracing Methods, are presented and compared to those measured for the scaled chamber, seeking the validation of the developed numerical model.porAcesso AbertoEngenharia acústicaCâmara reverberanteAbsorção sonoraCampo difusoModelo reduzidoPará - EstadoAmazônia brasileiraAcoustic engineeringReverberant chamberSound absorptionDiffuse fieldReduced modelBrazilian AmazonDissertaçãoCNPQ::ENGENHARIAS::ENGENHARIA MECANICA::MECANICA DOS SOLIDOS