| Labyrinthine Structure with Subwavelength and Broadband Sound Insulation | |
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)
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| Source Publication | SHOCK AND VIBRATION
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| 2020-11-12 | |
| Volume | 2020Pages:8868324 |
| ISSN | 1070-9622 |
| Abstract | 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. |
| Keyword | ACOUSTIC METAMATERIAL |
| DOI | 10.1155/2020/8868324 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000595609300005 |
| WOS Research Area | Acoustics ; Engineering ; Mechanics |
| WOS Subject | Acoustics ; Engineering, Mechanical ; Mechanics |
| Funding Organization | 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} |
| Classification | Q3 |
| Ranking | 1 |
| Contributor | Chen, M ; Wang, YR ; Chen, M |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/85421 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.{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 2.{Jiang Heng, Liu Yu, Xu Wenshuai, Yang Tao, Pei Dongliang, Chen Meng, Wang Yuren} Univ Chinese Acad Sci Beijing 100049 Peoples R China |
| Recommended Citation 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.Rp_Au:Chen, M, Wang, YR, Chen, M |
| 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2020379.pdf（2705KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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