Comparative study of simulation methods for the quantification of the acoustic insulation provided by periodic structures

Abstract

[EN] Nowadays there are different available methods to perform simulations in acoustics. The suitability of them strongly depends on the system studied in each case. In the present work, a comparison between different methods (Multiple Scattering, Finite Elements Method and Finite Difference Time Domain) is carried out particularized to the quantification of the isolation provided by periodic structures (Sonic crystals). It has been considered a systematic study about computational time, precision and computational cost.[ES] Actualmente existen diferentes métodos para realizar simulaciones acústicas. La conveniencia de utilizar un método u otro depende del sistema que se estudia en cada caso. En este trabajo se realiza una comparativa entre diferentes métodos (Múltiple Scattering, Método de Elementos Finitos y Método de Diferencias Finitas en el Dominio del Tiempo) aplicados a la cuantificación del aislamiento proporcionado por estructuras periódicas (cristales de sonido). Se considera un estudio sistemático sobre tiempo computacional, la precisión y el coste computacional.This work was partially supported by the Spanish “MINISTERIO DE ECONOMIA, INDUSTRIA Y COMPETITIVIDAD” under the project TEC2015-68076-R.Parrilla-Navarro, MJ.; Redondo, J.; Sánchez Pérez, JV.; Peiró-Torres, MDP. (2018). Comparative study of simulation methods for the quantification of the acoustic insulation provided by periodic structures. Revista de Acústica. 49(1-2):3-10. http://hdl.handle.net/10251/112955S310491-