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Mapeamento de erro em métodos de medição de resistividade ao fluxo de ar de materiais porosos
(Universidade Federal de Santa Maria, 2023-08-08)
The air flow resistivity is one of the most important macroscopic parameters in the characterization of absorption materials since this parameter is used to describe the absorption in all classical calculation methods. In ...
Desenvolvimento de metamateriais acústicos com o uso de algoritmo genético e manufatura aditiva
(Universidade Federal de Santa Maria, 2023-10-26)
Sound absorption materials are used to mitigate noise in various applications, such as corporate environments, automotive and aeronautical industries, factories, among others. Although highly effective at high frequencies, ...
Análise de performance de um enclausuramento por meio de medição de potência sonora em câmara reverberante
(Universidade Federal de Santa Maria, 2023-03-21)
This paper presents the design, construction and evaluation of an acoustic enclosure, which was used as basis for the study of the sound insulation caused by these devices. An acoustic enclosure is a passive noise control ...