文章信息/Info

Title:

Research on underwater acoustic metamaterials

文章編號(hào):

1674-3962(2021)01-0007-14

作者:

曹培政1; 張宇1; 2; 3; 刁順1; 張賽4

（1. 廈門大學(xué)海洋與地球?qū)W院 水聲通信與海洋信息技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室，福建 廈門 361005）（2. 麻省理工學(xué)院機(jī)械工程系，美國麻薩諸塞州，劍橋 02139）（3. 廈門大學(xué)海洋與地球?qū)W院 近海海洋環(huán)境科學(xué)國家重點(diǎn)實(shí)驗(yàn)室，福建 廈門 361005）（4. 江蘇大學(xué)物理系，江蘇鎮(zhèn)江212013）

Author(s):

CAO Peizheng1;  ZHANG Yu1; 2; 3;  DIAO Shun1;  ZHANG Sai4

(1. Key Laboratory of Underwater Acoustic Communication and Marine Information Technology of the Ministry of Education, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005, China ) (2. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA) (3. State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China) (4. Department of physics, Jiangsu University, Zhenjiang 212000, China)

關(guān)鍵詞:

聲學(xué)超材料; 流固耦合; 模式轉(zhuǎn)換; 局域共振; 超表面復(fù)合結(jié)構(gòu)

Keywords:

acoustic metamaterial;  fluid�瞫tructure interaction;  mode transformation/conversion;  local resonance;  supersurface composite structure

分類號(hào):

TB56；TB34

DOI:

10.7502/j.issn.1674-3962.202007017

文獻(xiàn)標(biāo)志碼:

A

摘要:

聲學(xué)超材料在空氣中應(yīng)用的研究已經(jīng)很多，通過對其聲學(xué)負(fù)參數(shù)的研究可以實(shí)現(xiàn)負(fù)折射、聲隱身、波束控制以及超分辨成像等功能。聲學(xué)超材料在空氣中的良好應(yīng)用也讓更多的研究者們聚焦水下聲學(xué)超材料（簡稱水聲超材料）聲聚焦、聲透射等的研究，其在水下的研究涉及到流固耦合以及模式轉(zhuǎn)換的影響，會(huì)更加復(fù)雜。水下研究的主要難題有尺度大、低頻性能差、不耐靜水壓力等，針對此類問題，國內(nèi)外研究者做了很多相關(guān)工作。水聲超材料的發(fā)展歷程經(jīng)歷了多個(gè)階段。經(jīng)典的局域共振型水聲超材料的一系列優(yōu)化措施是對實(shí)現(xiàn)水下寬帶、低頻吸聲的探索；超晶格超表面復(fù)合結(jié)構(gòu)的聲二極管對實(shí)現(xiàn)噪聲控制、聲學(xué)通訊、目標(biāo)探測等起到重要影響；其他比如水聲隱身斗篷、水聲學(xué)棱鏡等應(yīng)用也具有不錯(cuò)的前景。由此可見聲學(xué)超材料在水下的研究潛力是巨大的。

Abstract:

Acoustic metamaterials have been widely studied in the air, which can realize negative refraction, acoustic stealth, beam control and super-resolution imaging through the study of acoustic negative parameters. The good application of acoustic metamaterials in the air has led more researchers to focus on the study of underwater acoustic metamaterials. Underwater research involves the effects of fluid-solid coupling and mode conversion, which will be more complex. Underwater research is the mainly faced with problems such as large scale, poor low frequency performance and inresistance to hydrostatic pressure. To solve these problems, researchers have done a lot of advance work. This article presents a comprehensive overview of development of underwater acoustic metamaterials.A series of optimization measures of classical local resonant underwater acoustic metamaterials are to explore the realization of broadband and low frequency underwater sound absorption. Acoustic diode function of superlattice and supersurface composite structures plays an important role in noise control, acoustic communication and target detection. The emerging applications of underwater acoustic metamaterials including underwater acoustic invisibility cloak and underwater acoustic prism are also discussed. Therefore, acoustic metamaterials exhibit great potential in underwater research.