Deep-subwavelength and hydrostatic-pressure-resistant meta-absorber for broadband low-frequency underwater sound

被引：1

作者：

Zhang, Yanni ^{[1
,2
]}

Tong, Manlin ^{[1
,2
]}

Rui, Xiaoting ^{[1
,2
]}

Wang, Guoping ^{[1
,2
]}

Yang, Fufeng ^{[1
,2
]}

机构：

[1] Nanjing Univ Sci & Technol, Inst Launch Dynam, Nanjing, Jiangsu, Peoples R China

[2] Natl Key Lab Complex Multibody Syst Dynam, Nanjing, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2024年 / 17卷 / 07期

基金：

中国国家自然科学基金;

关键词：

underwater acoustic absorbers; hydrostatic pressure; broadband low-frequency sound; subwavelength; ACOUSTIC METAMATERIALS; ABSORPTION; OPTIMIZATION;

D O I：

10.35848/1882-0786/ad622e

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By embedding center-supported graded-circular-plates (CS-GCPs) into an elastomer, a deep-subwavelength and hydrostatic-pressure-resistant meta-absorber was designed and manufactured for sound absorption (SA) under hydrostatic pressure. The meta-absorber exhibits excellent SAs (>0.842, 0.927 on average) within 500-2000 Hz and quasi-perfect SAs (>0.94) within 500-700 Hz with a 2% thickness of the sound wavelength. The excellent SAs (0.91 on average) are verified experimentally within 1-10 kHz, and remained high (0.84 on average) under a hydrostatic pressure of 1.0 MPa. The exotic functionality arises from enriched local-dynamics by the CS-GCPs and pressure-resistance of the center-support, providing an effective solution for ultra-broadband low-frequency underwater sound control. (c) 2024 The Author(s). Published on behalf of TheJapan Society of Applied Physics by IOP Publishing Ltd.

引用

页数：6

共 48 条

[21] Study on the Low-Frequency and Broadband Sound Absorption Performance of an Underwater Anechoic Layer with Novel Design
Hu, Jinshun
Lin, Yongshui
Zhou, Zhiwei
Cao, Xiaofei
Chi, Qingjia
Wu, Weiguo
JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2023, 11 (02)
[22] Tunable composite lattice structure for low-frequency and ultra-broadband underwater sound absorption
Liu, Botao
Huang, Sibo
Zheng, Bo
Chen, Xuefeng
Zhao, Jia
Qi, Xinrui
Li, Yong
Liu, Shengchun
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2023, 153 (01): : 415 - 422
[23] Meta-structure underwater transducer with low-frequency broadband efficient acoustic emission
Lei, Yunzhong
Wu, Jiu Hui
Yang, Shaokun
Zheng, Tengyue
APPLIED ACOUSTICS, 2025, 233
[24] Underwater metastructure with broadband sound absorption capability in low-frequency range above 20 Hz
Zhang, Ruihao
Song, Yifan
Hou, Hong
Gao, Nansha
MODERN PHYSICS LETTERS B, 2021, 35 (01):
[25] Low-frequency broadband absorption of underwater composite anechoic coating with periodic subwavelength arrays of shunted piezoelectric patches
Zhang, Zhifu
Huang, Yizhe
Huang, Qibai
COMPOSITE STRUCTURES, 2019, 216 : 449 - 463
[26] Meta-structure based on coupled resonators for low-frequency broadband sound absorption
Santos, Lucas Adelmo
Almeida, Gildean do Nascimento
Vergara, Erasmo Felipe
Barbosa, Leandro Rodrigues
Bastos Farias, Linconl Cesar
ACTA SCIENTIARUM-TECHNOLOGY, 2024, 46 (01)
[27] Hybrid acoustic metamaterial as super absorber for broadband low-frequency sound (vol 7, 43340, 2017)
Tang, Yufan
Ren, Shuwei
Meng, Han
Xin, Fengxian
Huang, Lixi
Chen, Tianning
Zhang, Chuanzeng
Lu, Tian Jian
SCIENTIFIC REPORTS, 2017, 7
[28] A COMPOSITE STRUCTURE FOR LOW-FREQUENCY SOUND ABSORPTION WITH CONTINUOUS BROADBAND UNDER HIGH SOUND PRESSURE EXCITATIONS
Zhu, Junzhe
Gao, Hao
Qu, Yegao
Meng, Guang
PROCEEDINGS OF ASME 2023 INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, IMECE2023, VOL 1, 2023,
[29] Machine learning-assisted low-frequency and broadband sound absorber with coherently coupled weak resonances
Chen, An
Xu, Zi-Xiang
Zheng, Bin
Yang, Jing
Liang, Bin
Cheng, Jian-Chun
APPLIED PHYSICS LETTERS, 2022, 120 (03)
[30] Low-frequency broadband absorption of semi-active composite anechoic coating with subwavelength piezoelectric arrays in hydrostatic environments
Zhang, Zhifu
Li, Shande
Wang, Jiaxuan
Huang, Qibai
RESULTS IN PHYSICS, 2021, 30

← 1 2 3 4 5 →