Ultra-Broadband Bending Beam and Bottle Beam Based on Acoustic Metamaterials

Authors

Xudong Fan, Nanjing University of Science and Technology
Xiaolong Huang, Nanjing University of Science and Technology
Yang Kang, Nanjing University of Science and Technology
Can Li, Nanjing University of Science and Technology
Ning Li, Nanjing University of Science and Technology
Chunsheng Weng, Nanjing University of Science and Technology
Likun Zhang, University of Mississippi

Document Type

Article

Publication Date

3-1-2022

Abstract

We report the realization of an ultra-broadband bending beam based on acoustic meta-materials by the theoretical prediction and the numerical validation. The proposed structure is composed of a series of straight tubes with spatially modulated depths. We analytically derive the depth profile required for the generation of an ultra-broadband bending beam, and examine the performance of the metastructure numerically. The design is then extended for the generation of a three-dimensional bottle beam. The transverse trapping behaviours on small rigid objects by the bottle beam are investigated based on the force potential. Our work will help the further study of broadband acoustic meta-structures, and may also find applications in a variety of fields such as ultrasound imaging, health monitoring and particle manipulations.

Relational Format

journal article

Recommended Citation

Fan, X.; Huang, X.; Kang, Y.; Li, C.; Li, N.; Weng, C. Ultra-Broadband Bending Beam and Bottle Beam Based on Acoustic Metamaterials. Appl. Sci. 2022, 12, 3025. https://doi.org/10.3390/app12063025

DOI

10.3390/app12063025

Accessibility Status

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