Acoustic scattering from a submerged cylindrical shell coated with locally resonant acoustic metamaterials

doi:10.1088/1674-1056/22/1/014301

Abstract Using the multilayered cylinder model, we study the acoustic scattering from a submerged cylindrical shell coated with locally resonant acoustic metamaterials, which exhibit locally negative effective mass densities. A spring model is introduced to replace the traditional transfer matrix, which may be singular in the negative mass region. The backscattering form function and the scattering cross section are calculated to discuss the acoustic properties of the coated submerged cylindrical shell.

Keywords: acoustic metamaterials acoustic scattering cylindrical shell

Received: 29 March 2012
Revised: 18 June 2012
Accepted manuscript online:

PACS:	43.20.+g	(General linear acoustics)
	42.25.Bs	(Wave propagation, transmission and absorption)
	52.35.Dm	(Sound waves)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11004249 and 11004250).

Corresponding Authors: Wen Xi-Sen
E-mail: wenxs@vip.sina.com

Cite this article:

Li Li (李黎), Wen Ji-Hong (温激鸿), Cai Li (蔡力), Zhao Hong-Gang (赵宏刚), Wen Xi-Sen (温熙森) Acoustic scattering from a submerged cylindrical shell coated with locally resonant acoustic metamaterials 2013 Chin. Phys. B 22 014301

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Acoustic scattering from a submerged cylindrical shell coated with locally resonant acoustic metamaterials

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