Underwater stealth metasurfaces composed of split-orifice-conduit hybrid resonators
SCIE
SCOPUS
- Title
- Underwater stealth metasurfaces composed of split-orifice-conduit hybrid resonators
- Authors
- LEE, DONGWOO; JANG, YEONGTAE; PARK, JEONGHOON; KANG, IN SEOK; Jensen Li; RHO, JUNSUK
- Date Issued
- 2021-03
- Publisher
- American Institute of Physics
- Abstract
- The development of sound-absorbing materials for noise reduction in daily life has been a prolonged issue that also applies to a recognized need for submarine anechoic tiles to stay independent from SONAR (SOund NAvigation Ranging). Here, we present an underwater stealth metasurface that uses split-orifice-conduit (SOC) hybrid resonators to significantly reduce its acoustic reflectance. A theoretical analysis of SOC elements provides an approach to quantifying acoustic characteristics using the transfer matrix method in a single metasurface. The findings confirm that we can tune the absorption with respect to a resonating frequency by adjusting geometrical parameters. Utilizing a hybrid mechanism that enables easy access to coupled resonances, we obtain broadband absorption spectra even in the presence of a covariant sound speed profile in the deep sea and a thermoviscous effect on unit cells of the metasurface. Such a metasurface will provide a further step toward developing feasible underwater stealth technologies for submarines and remains to be experimentally demonstrated.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/105151
- DOI
- 10.1063/5.0042246
- ISSN
- 0021-8979
- Article Type
- Article
- Citation
- Journal of Applied Physics, vol. 129, no. 10, 2021-03
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- There are no files associated with this item.
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