An acoustic metamaterial bending waveguide design using transformation acoustics

Liang Yu Wu, Tzeh Yi Chiang, Mei Ling Wu, Lien Wen Chen

研究成果: Conference contribution

摘要

An acoustic bending waveguide is designed by transformation acoustics. A two-dimensional square area with anisotropic and homogeneous material properties is transformed into a fan-shaped area with anisotropic and inhomogeneous material properties to rotate the direction of beam propagation. The transformation medium can be realized by alternating layered structure consisting of water and fluid with negative mass density. We propose that an acoustic metamaterial composed of three layers in water background can be designed to replace negative mass density fluid and achieve the acoustic bending waveguide.

原文English
主出版物標題Mechanics of Solids, Structures and Fluids; Vibration, Acoustics and Wave Propagation
發行者American Society of Mechanical Engineers (ASME)
頁面937-943
頁數7
ISBN(列印)9780791854945
DOIs
出版狀態Published - 2011 一月 1
事件ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 - Denver, CO, United States
持續時間: 2011 十一月 112011 十一月 17

出版系列

名字ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
8

Other

OtherASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
國家United States
城市Denver, CO
期間11-11-1111-11-17

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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  • 引用此

    Wu, L. Y., Chiang, T. Y., Wu, M. L., & Chen, L. W. (2011). An acoustic metamaterial bending waveguide design using transformation acoustics. 於 Mechanics of Solids, Structures and Fluids; Vibration, Acoustics and Wave Propagation (頁 937-943). (ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011; 卷 8). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/imece2011-63290