Design of the Coordinate Transformation Function for Cylindrical Acoustic Cloaks with a Quantity of Discrete Layers

Autor:	Zhimiao Lu, Jihong Wen, Xisen Wen, Dianlong Yu, Li Cai
Rok vydání:	2014
Předmět:	Physical acoustics Physics Frequency response business.industry Scattering Acoustics Coordinate system Cloak Shell (structure) Physics::Optics General Physics and Astronomy Acoustic wave Physics::Classical Physics Optics Computer Science::Sound Scattering theory business
Zdroj:	Chinese Physics Letters. 31:094303
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/31/9/094303
Popis:	Acoustic cloak based on coordinate transformation is of great topical interest and has promise in potential applications such as sound transparency and insulation. The frequency response of acoustic cloaks with a quantity of discrete homogeneous layers is analyzed by the acoustic scattering theory. The effect of coordinate transformation function on the acoustic total scattering cross section is discussed to achieve low scattering with only a few layers of anisotropic metamaterials. Also, the physics of acoustic wave interaction with the interfaces between the discrete layers inside the cloak shell is discussed. These results provide a better way of designing a multilayered acoustic cloak with fewer layers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::856372b77939dd7c39bb1a49131291cd https://doi.org/10.1088/0256-307x/31/9/094303 Zobrazit plný text záznamu