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

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

中国物理B ›› 2013, Vol. 22 ›› Issue (1): 14301-014301.doi: 10.1088/1674-1056/22/1/014301

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

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

李黎, 温激鸿, 蔡力, 赵宏刚, 温熙森

Key Laboratory of Photonic and Phononic Crystal of Ministry of Education, National University of Defense Technology, Changsha 410073, China Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China

收稿日期:2012-03-29 修回日期:2012-06-18 出版日期:2012-12-01 发布日期:2012-12-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11004249 and 11004250).

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

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)

Key Laboratory of Photonic and Phononic Crystal of Ministry of Education, National University of Defense Technology, Changsha 410073, China Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China

Received:2012-03-29 Revised:2012-06-18 Online:2012-12-01 Published:2012-12-01
Contact: Wen Xi-Sen E-mail:wenxs@vip.sina.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11004249 and 11004250).

摘要/Abstract

摘要： 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.

关键词: acoustic metamaterials, acoustic scattering, cylindrical shell

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.

Key words: acoustic metamaterials, acoustic scattering, cylindrical shell

中图分类号: (General linear acoustics)

43.20.+g

42.25.Bs (Wave propagation, transmission and absorption) 52.35.Dm (Sound waves)

李黎, 温激鸿, 蔡力, 赵宏刚, 温熙森. Acoustic scattering from a submerged cylindrical shell coated with locally resonant acoustic metamaterials[J]. 中国物理B, 2013, 22(1): 14301-014301.

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[J]. Chin. Phys. B, 2013, 22(1): 14301-014301.

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

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

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