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Labyrinthine Structure with Subwavelength and Broadband Sound Insulation

文献类型：期刊论文

作者Jiang H(姜恒); Liu Y(刘宇); Xu WS(徐文帅); Yang T(杨洮); Pei DL(裴东亮); Chen M(陈猛); Wang YR(王育人)
刊名SHOCK AND VIBRATION
出版日期2020-11-12
卷号2020页码:8868324
关键词ACOUSTIC METAMATERIAL
ISSN号1070-9622
DOI10.1155/2020/8868324
英文摘要In this text, the combination of spiral structure and zigzag channels is introduced to design labyrinthine structures, in which sound waves can propagate alternately in the clockwise and counterclockwise directions. Finite element method and S-parameter retrieval method are used to calculate band structures, effective parameters, and transmission properties of the structures. The influences of different structural parameters on their acoustic properties are also studied. These results show labyrinthine structures have multiple bandgaps in the range of 0 Hz-1000 Hz, and the proportion of bandgaps exceeds 33%, which indicates labyrinthine structures have good broadband properties. The normalized frequency of the lowest bandgaps is far smaller than 1, which indicates the structures take good control of sound waves on subwavelength scale. Combining units with different structural parameters can achieve better sound insulation. This research provides a new kind of space-coiling structure for low-frequency and broadband sound waves control, which have excellent application prospects.
分类号Q3
WOS研究方向Acoustics ; Engineering ; Mechanics
语种英语
WOS记录号WOS:000595609300005
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11972034, 11802213} ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB22040301} ; Youth Innovation Promotion Association of the Chinese Academy of Science [2020018}
其他责任者Chen, M ; Wang, YR ; Chen, M
源URL[http://dspace.imech.ac.cn/handle/311007/85421]  
专题力学研究所_国家微重力实验室
作者单位1.{Jiang Heng, Liu Yu, Xu Wenshuai, Yang Tao, Pei Dongliang, Chen Meng, Wang Yuren} Univ Chinese Acad Sci Beijing 100049 Peoples R China
2.{Jiang Heng, Liu Yu, Xu Wenshuai, Yang Tao, Pei Dongliang, Chen Meng, Wang Yuren} Chinese Acad Sci Inst Mech Key Lab Micrograv Beijing 100190 Peoples R China
推荐引用方式
GB/T 7714		 Jiang H,Liu Y,Xu WS,et al. Labyrinthine Structure with Subwavelength and Broadband Sound Insulation[J]. SHOCK AND VIBRATION,2020,2020:8868324.
APA 姜恒.,刘宇.,徐文帅.,杨洮.,裴东亮.,...&王育人.(2020).Labyrinthine Structure with Subwavelength and Broadband Sound Insulation.SHOCK AND VIBRATION,2020,8868324.
MLA 姜恒,et al."Labyrinthine Structure with Subwavelength and Broadband Sound Insulation".SHOCK AND VIBRATION 2020(2020):8868324.

入库方式： OAI收割

来源：力学研究所

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