题名 | Sound energy enhancement via impedance-matched anisotropic metamaterial |
作者 | |
通讯作者 | Yan,Ming |
发表日期 | 2021
|
DOI | |
发表期刊 | |
ISSN | 0264-1275
|
EISSN | 1873-4197
|
卷号 | 197 |
摘要 | Sound energy enhancement realized by electronic circuit designs plays a vital part in many fields, including acoustic communication, medical imaging, acoustic positioning and sound energy harvesting. The same effect, actually, can be achieved based on anisotropic acoustic meta-structures without electronic components, which has rarely been studied before. Fabricated by 3D printing technology, a two-way spiral-shaped metamaterial and its two-dimensional array are designed in the study, which is capable to realize sound energy enhancement. Due to the impedance matching design, the meta-structure shows almost opposite transmission behaviors in orthogonal directions. The sound wave compression and resonance effects come from the high-refractive-index medium, leading to enlarged acoustic signals inside the waveguide. For the array with an inside point sound source, an energy enhancement phenomenon occurs in the wave emission area outside the structure. Through experimental results and numerical simulations, it is revealed that the sound intensity of the emission wave can be increased more than fifteen-fold compared with the insulation condition in the range of 4.8–5.8 kHz, when the anisotropic metamaterial array is applied. The flexibility of the anisotropic meta-structure and corresponding array designs enables versatile applications demanding excellent sound signal and broadband performance. |
关键词 | |
相关链接 | [Scopus记录] |
收录类别 | |
语种 | 英语
|
学校署名 | 通讯
|
资助项目 | Natural Science Foundation of China[51971108]
; Shenzhen Science and Technology Innovation Commission["ZDSYS201703031748354","JCYJ20180504165824643"]
; Shenzhen Industrial and Information Technology Bureau[ZDYBH201900000009]
; CRP of Singapore National Research Foundation[NRF-CRP15-2015-04]
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WOS研究方向 | Materials Science
|
WOS类目 | Materials Science, Multidisciplinary
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WOS记录号 | WOS:000596076700008
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出版者 | |
EI入藏号 | 20204409434146
|
EI主题词 | Acoustic fields
; Acoustic impedance
; Metamaterials
; Impedance matching (electric)
; Energy harvesting
; Medical imaging
; 3D printers
; Anisotropy
|
EI分类号 | Biomedical Engineering:461.1
; Energy Conversion Issues:525.5
; Light/Optics:741.1
; Printing Equipment:745.1.1
; Imaging Techniques:746
; Acoustics, Noise. Sound:751
; Acoustic Properties of Materials:751.2
; Physical Properties of Gases, Liquids and Solids:931.2
; Materials Science:951
|
ESI学科分类 | MATERIALS SCIENCE
|
Scopus记录号 | 2-s2.0-85094316226
|
来源库 | Scopus
|
引用统计 |
被引频次[WOS]:17
|
成果类型 | 期刊论文 |
条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/209076 |
专题 | 工学院_材料科学与工程系 |
作者单位 | 1.Department of Electrical and Computer Engineering,National University of Singapore,4 Engineering Drive 3,117583,Singapore 2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China |
第一作者单位 | 材料科学与工程系 |
通讯作者单位 | 材料科学与工程系 |
推荐引用方式 GB/T 7714 |
Jia,Xiao,Yan,Ming,Hong,Minghui. Sound energy enhancement via impedance-matched anisotropic metamaterial[J]. Materials and Design,2021,197.
|
APA |
Jia,Xiao,Yan,Ming,&Hong,Minghui.(2021).Sound energy enhancement via impedance-matched anisotropic metamaterial.Materials and Design,197.
|
MLA |
Jia,Xiao,et al."Sound energy enhancement via impedance-matched anisotropic metamaterial".Materials and Design 197(2021).
|
条目包含的文件 | 条目无相关文件。 |
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