Broadband sound blocking in phononic crystals with rotationally symmetric inclusions | Zendy

Joong Seok Lee | Zendy; Sungmin Yoo | Zendy; Young Kwan Ahn | Zendy; Yoon Young Kim | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Broadband sound blocking in phononic crystals with rotationally symmetric inclusions

Author(s) -

Joong Seok Lee,

Sungmin Yoo,

Young Kwan Ahn,

Yoon Young Kim

Publication year - 2015

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4929625

Subject(s) - broadband , materials science , acoustic metamaterials , blocking (statistics) , scattering , resonance (particle physics) , acoustics , crystal (programming language) , block (permutation group theory) , speed of sound , acoustic resonance , band gap , optics , condensed matter physics , physics , optoelectronics , geometry , computer science , mathematics , computer network , particle physics , programming language

This paper investigates the feasibility of broadband sound blocking with rotationally symmetric extensible inclusions introduced in phononic crystals. By varying the size of four equally shaped inclusions gradually, the phononic crystal experiences remarkable changes in its band-stop properties, such as shifting/widening of multiple Bragg bandgaps and evolution to resonance gaps. Necessary extensions of the inclusions to block sound effectively can be determined for given incident frequencies by evaluating power transmission characteristics. By arraying finite dissimilar unit cells, the resulting phononic crystal exhibits broadband sound blocking from combinational effects of multiple Bragg scattering and local resonances even with small-numbered cells.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research