Labyrinthine Structure with Subwavelength and Broadband Sound Insulation
Joint Authors
Jiang, Heng
Xu, Wenshuai
Pei, Dongliang
Chen, Meng
Wang, Yuren
Liu, Yu
Yang, Tao
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Jiang, Heng& Liu, Yu& Xu, Wenshuai& Yang, Tao& Pei, Dongliang& Chen, Meng…[et al.]. 2020. Labyrinthine Structure with Subwavelength and Broadband Sound Insulation. Shock and Vibration،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1213082
Modern Language Association (MLA)
Jiang, Heng…[et al.]. Labyrinthine Structure with Subwavelength and Broadband Sound Insulation. Shock and Vibration No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1213082
American Medical Association (AMA)
Jiang, Heng& Liu, Yu& Xu, Wenshuai& Yang, Tao& Pei, Dongliang& Chen, Meng…[et al.]. Labyrinthine Structure with Subwavelength and Broadband Sound Insulation. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1213082
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1213082