Broadband acoustic energy confinement in hierarchical sonic crystals composed of rotated square inclusions

• Main Authors: Shakouri, Amir, Xu, Feifei, Fan, Zheng
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2018
• Subjects: Acoustical Properties; DRNTU::Engineering::Mechanical engineering; Architectural Acoustics
• Online Access: https://hdl.handle.net/10356/103327; http://hdl.handle.net/10220/47278
• Institution: Nanyang Technological University

The propagation of acoustic waves in hierarchical sonic crystals is studied computationally and experimentally. These sonic crystals are composed of a hierarchical order of square inclusions rotated 45° with respect to the square lattice structure. It is shown that these hierarchical sonic crystals...