Low-Frequency Broadband Synergistic Coupling Mechanism of Acoustic Metamaterials with High Efficiency Absorption

doi:10.7652/xjtuxb201910017

您当前的位置：

首页 >

文章列表页 >

Low-Frequency Broadband Synergistic Coupling Mechanism of Acoustic Metamaterials with High Efficiency Absorption

更新时间：2025-07-09

- Low-Frequency Broadband Synergistic Coupling Mechanism of Acoustic Metamaterials with High Efficiency Absorption
- Vol. 53, Issue 10, Pages: 122-127(2019)
- 作者机构：
  
  西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201910017
  CLC： O422.4
- Online First：10 October 2019，
  
  Published：2019
- 稿件说明：
移动端阅览
Low-Frequency Broadband Synergistic Coupling Mechanism of Acoustic Metamaterials with High Efficiency Absorption[J]. 2019, 53(10): 122-127.
DOI：

Low-Frequency Broadband Synergistic Coupling Mechanism of Acoustic Metamaterials with High Efficiency Absorption[J]. 2019, 53(10): 122-127. DOI： 10.7652/xjtuxb201910017.

摘要

针对传统材料难以有效控制低频噪声的问题

提出了一种膜类带腔声学超结构的低频宽带协同耦合高效吸声机理。这种超结构有多个吸声单元

每个吸声单元由两个铝片组成

铝片固定在空气腔上方的硅胶薄膜上。首先利用有限元软件COMSOL Multiphysics 5.3计算单元胞的吸声特性

确定吸声结构的尺寸和材料参数; 然后通过两元胞结构分析振动模态和吸声机理

解决吸声结构窄带的问题

再分析典型结构参数对协同耦合机理和吸声特性的具体影响规律; 最后通过多单元的协同耦合

实现整个频率范围内的宽带吸声。仿真结果表明:通过设计多个单元的协同耦合

可以将不同单元之间的吸声峰值相互错开

使结构的吸声系数在整个低频范围内均匀分布

实现200～1 000 Hz范围内连续的吸声宽带

平均吸声系数为80%左右

实现低频大宽带的优异吸声性能。该研究结果可为低频宽带吸声材料的设计提供一种新的思路

在控制振动和噪声方面具有潜在的应用前景。

Abstract

A low-frequency broadband synergistic coupling mechanism of membrane-type metamaterials with high efficiency absorption is proposed to solve the problem that traditional materials are difficult to effectively control low-frequency noise.This kind of membrane-type metamaterials consists of multiple units

each unit is composed of two aluminum platelets

and each platelet is fastened on a piece of silicone membrane above an air cavity.Finite element software COMSOL Multiphysics 5.3 is used to calculate the absorption characteristics to determine the structure si-e and material parameters of the cell.Then the vibration mode and mechanism are analy-ed by two cells to solve the narrow band.The influence of typical structural parameters on synergetic coupling mechanism and absorption characteristics is discussed.The broadband sound absorption in the whole frequency range is reali-ed via synergetic coupling of multiple units.The simulations show that the absorption peaks of units can be stagg

关键词

Keywords

references

吴九汇, 马富银, 张思文, 等.声学超材料在低频减振降噪中的应用评述 [J].机械工程学报, 2016, 52(13): 68-78.

WU Jiuhui, MA Fuyin, ZHANG Siwen, et al.Application of acoustic metamaterials in low-frequency vibration and noise reduction [J].Journal of Mechanical Engineering, 2016, 52(13): 68-78.

LIU J, HERRIN D W.Enhancing micro-perforated panel attenuation by partitioning the adjoining cavity [J].Applied Acoustics, 2010, 71(2): 120-127.

GUAN Dong, WU Jiuhui, WU Jiangling, et al.Acoustic performance of aluminum foams with semiopen cells [J].Applied Acoustics, 2015, 87: 103-108.

马大猷.微穿孔板吸声结构的理论和设计 [J].中国科学, 1975, 5(1): 38-50.

LIU Z.Locally resonant sonic materials [J].Science, 2000, 289(5485): 1734-1736.

YANG Zhiyu, MEI Jun, YANG Ming, et al.Membrane-type acoustic metamaterial with negative dynamic mass [J].Physical Review Letters, 2008, 101(20): 204301.

MEI Jun, MA Guancong, YANG Ming, et al.Dark acoustic metamaterials as super absorbers for low-frequency sound [J].Nature Communications, 2012, 3: 756.

MA Fuyin, MENG Huang, WU Jiuhui.Acoustic metamaterials with synergetic coupling [J].Journal of Applied Physics, 2017, 122(21): 215102.

吴九汇, 张思文, 沈礼.螺旋局域共振单元声子晶体板结构的低频振动带隙特性研究 [J].机械工程学报, 2013, 49(10): 62-69.

WU Jiuhui, ZHANG Siwen, SHEN Li.Low-frequency vibration characteristics of periodic spiral resonators in phononic crystal plates [J].Journal of Mechanical Engineering, 2013, 49(10): 62-69.

DING Changling, WANG Zhenru, SHEN Fangliang, et al.Experimental realization of acoustic metasurface with double-split hollow sphere [J].Solid State Communications, 2016, 229: 28-31.

MEI Jun, WU Ying.Controllable transmission and total reflection through an impedance-matched acoustic metasurface [J].New Journal of Physics, 2014, 16(12): 123007.

GUAN Dong, WU Jiuhui, LI Jing, et al.Application of a Helmholtz structure for low frequency noise reduction [J].Noise Control Engineering Journal, 2015, 63(1): 20-35.

JING L, WU J H, GUAN D, et al.Multilayer-split-tube resonators with low-frequency band gaps in phononic crystals [J].Journal of Applied Physics, 2014, 116(10): 103514.

WU Xiaoxiao, FU Caixing, LI Xin, et al.Low-frequency tunable acoustic absorber based on split tube resonators [J].Applied Physics Letters, 2016, 109(4): 043501.

ZHU X Z, CHEN Z B, JIAO Y H, et al.Broadening of the sound absorption bandwidth of the perforated panel using a membrane-type resonator [J].Journal of Vibration and Acoustics, 2018, 140(3): 031014.

SANADA A, TANAKA N.Extension of the frequency range of resonant sound absorbers using two-degree-of-freedom Helmholtz-based resonators with a flexible panel [J].Applied Acoustics, 2013, 74(4): 509-516.

NAIFY C J, CHANG C M, MCKNIGHT G, et al.Transmission loss of membrane-type acoustic metamaterials with coaxial ring masses [J].Journal of Applied Physics, 2011, 110(12): 124903.

NAIFY C J, CHANG C M, MCKNIGHT G, et al.Membrane-type metamaterials: transmission loss of multi-celled arrays [J].Journal of Applied Physics, 2011, 109(10): 104902.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on the Electrohydrodynamic Effects of Ionic Liquid-Modified Fuels

Sensitivity Analysis of Foil Geometrical Parameters for the Third-Generation CO2 Gas Foil Bearings Based on Design of Experiments Method

Review of the Application of EBSILON Software in Combined Heat and Power System Optimization

Electrothermal Coupling Research on the Evolutionary Law of Anti-Corona Performance for High-Altitude Air-Cooled Generators

Influence of Structural Parameters on the Summer Operational Characteristics of a Three-Tower-in-One Indirect Air-Cooling System

Related Author

No data

Related Institution

No data

⁰