Acoustic frequency filter based on anisotropic topological phononic crystals

2017/06/22 by Ze‐Guo Chen, Jiajun Zhao, Chen, Ze-Guo +5 · 1 citation
Computer Science · Engineering · Earth and Planetary Sciences · #Music and Audio Processing #Acoustic Wave Phenomena Research #Underwater Acoustics Research

paper · pdf · doi:10.48550/arxiv.1706.07283

Abstract

There are growing efforts in constructing topological edge states in classical wave system. However, most of the work study the existence, creation and properties of the edge states, and the demonstration of application is highly desirable. Here, we present our design of a two-dimensional anisotropic phononic crystal that exhibits tunable topological phases. We further explore the contribution of anisotropy and show that the bandgap topology is also related to particular directions and frequency. Such frequency dependent behavior can be utilized as a frequency filter.

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• Hybrid TPMS-based Designs for Anisotropic Acoustic Metamaterials: Numerical Simulation and Topology Optimization

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