Issue |
EPL
Volume 146, Number 3, May 2024
|
|
---|---|---|
Article Number | 30003 | |
Number of page(s) | 5 | |
Section | General physics | |
DOI | https://doi.org/10.1209/0295-5075/ad3a11 | |
Published online | 14 May 2024 |
Resonant-pillar-type acoustic black hole for ultralow-frequency vibration reduction
1 Institute of Sound and Vibration Research, Hefei University of Technology - 193 Tunxi Road, Hefei 230009, China
2 Beijing Institute of Graphic Communication,1 Xinghua Avenue (Band 2) - Beijing, 102600, China
3 Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences - Beijing, China
4 China Orient Institute of Noise and Vibration - Beijing, 10085, China
Received: 23 January 2024
Accepted: 3 April 2024
This paper proposes a resonant-type acoustic black hole (ABH). The ABH is achieved with gradient refractive index varies from the center of the lens to its outer surface. The performance of wave focusing and vibration reduction via the ABH is explored theoretically and numerically. Results show that the designed ABH can achieve wave focusing inside the lens and provide good vibration reduction at low frequency.
© 2024 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.