Labyrinthine Structure with Subwavelength and Broadband Sound Insulation

doi:10.1155/2020/8868324

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	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)
发表期刊	SHOCK AND VIBRATION
	2020-11-12
卷号	2020 页码:8868324
ISSN	1070-9622
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.
关键词	ACOUSTIC METAMATERIAL
DOI	10.1155/2020/8868324
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000595609300005
WOS研究方向	Acoustics ; Engineering ; Mechanics
WOS类目	Acoustics ; Engineering, Mechanical ; Mechanics
项目资助者	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}
论文分区	Q3
力学所作者排名	1
RpAuthor	Chen, M ; Wang, YR ; Chen, M
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/85421
专题	微重力重点实验室
作者单位	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
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.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.

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