Acoustic Bandgaps of Phononic Penrose and Quasicrystals

TL;DR

This study investigates the acoustic bandgap properties of 3D-printed phononic crystals with Penrose and quasicrystal structures, revealing their potential for controlling sound in specific frequency ranges.

Contribution

It introduces the fabrication and analysis of phononic crystals with Penrose and quasicrystal geometries, highlighting their unique acoustic bandgap characteristics.

Findings

Both structures exhibit distinct acoustic band gaps.

The bandgap frequencies are within 5kHz to 25kHz.

Structural geometry influences the bandgap properties.

Abstract

Using 3D printing we manufactured two rodlike phononic crystals. Viewed from the top, one is a Penrose tile and the second is a quasicrystal. We explored the acoustic properties and band gaps for both in the frequency range of 5kHz to 25kHz.