Numerical simulation and laboratory measurements on an open tunable acoustic barrier
[EN] A new open, thin and low frequency acoustic barrier is presented. These barriers, based on arrays of isolated pickets produce high acoustic attenuation in a selective range of frequencies related to their geometry and distribution. These open barriers are acoustically competitive with tradition...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/107463 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/107463 |
| Access Level: | acceso abierto |
| Palabra clave: | Acoustic barrier Insertion loss Acoustic quarter subwavelength resonator Industrial noise Building protection FISICA APLICADA MATEMATICA APLICADA Proyectos de ingeniería física 14503 / T - Grado en ingeniería física 205 |
| Sumario: | [EN] A new open, thin and low frequency acoustic barrier is presented. These barriers, based on arrays of isolated pickets produce high acoustic attenuation in a selective range of frequencies related to their geometry and distribution. These open barriers are acoustically competitive with traditional ones, which are based on con-tinuous and rigid materials. To show its versatility to in attenuating di¿erent selected ranges of frequencies, a compact numerical model is presented. Di¿erent cases are analysed and compared with experimental results. The accuracy of the experimental re-sults compared to the simulated ones allow us to use the compact model to design these barriers in order to reduce both industrial and tra¿c noise on demand and to introduce them into the noise control market. |
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