Fluid-Fluid Phononic Crystal with Elastic Coat Working in Audible Frequencies
2019
scientific article
english
- Phononic Crystal
- band gap
- Finite Element Method
- viscoelasticity
EN Phononic Crystals are receiving rising attention in the field of modern acoustic materials. PCs are artificial structures of periodically arranged scatterers. Such a structure enables creating a band gap in which, due to the Bragg diffraction phenomenon, vibrations are restrained or even forbidden. In this paperwork, the fluid-fluid PC is tested and simulated -the scatterers are constructed of water cylinders with an ethylene propylene diene monomer coat (EPDM–a hyperelastic rubber) and are embedded in air. The band gap is calculated to emerge in the audible range of frequency. Every simulation is performed with the use of the finite element method.
2019145-1 - 2019145-7
CC BY (attribution alone)
public
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