Broadband low-frequency acoustic absorber based on metaporous composite

被引:8
作者
Xu, Jia-Hao [1 ]
Zhu, Xing-Feng [1 ,2 ]
Chen, Di-Chao [1 ]
Wei, Qi [1 ]
Wu, Da-Jian [1 ]
机构
[1] Nanjing Normal Univ, Sch Phys & Technol, Jiangsu Key Lab Optoelect Technol, Nanjing 210023, Peoples R China
[2] Nanjing Univ, Sch Phys, Key Lab Modern Acoust, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
acoustic metamaterial; low-frequency acoustic absorber; broadband; metaporous; FRAME POROUS LAYER; ABSORPTION; INCLUSIONS; SOUND;
D O I
10.1088/1674-1056/ac4907
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Broadband absorption of low-frequency sound waves via a deep subwavelength structure is of great and ongoing interest in research and engineering. Here, we numerically and experimentally present a design of a broadband low-frequency absorber based on an acoustic metaporous composite (AMC). The AMC absorber is constructed by embedding a single metamaterial resonator into a porous layer. The finite element simulations show that a high absorption (absorptance A > 0.8) can be achieved within a broad frequency range (from 290 Hz to 1074 Hz), while the thickness of AMC is 1/13 of the corresponding wavelength at 290 Hz. The broadband and high-efficiency performances of the absorber are attributed to the coupling between the two resonant absorptions and the trapped mode. The numerical simulations and experimental results are obtained to be in good agreement with each other. Moreover, the high broadband absorption can be maintained under random incident acoustic waves. The proposed absorber provides potential applications in low-frequency noise reduction especially when limited space is demanded.
引用
收藏
页数:6
相关论文
共 39 条
[11]   Enhancing the absorption properties of acoustic porous plates by periodically embedding Helmholtz resonators [J].
Groby, J-P ;
Lagarrigue, C. ;
Brouard, B. ;
Dazel, O. ;
Tournat, V. ;
Nennig, B. .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2015, 137 (01) :273-280
[12]   Sound insulation performance of thin-film acoustic metamaterials based on piezoelectric materials [J].
He Zi-Hou ;
Zhao Jing-Bo ;
Yao Hong ;
Jiang Juan-Na ;
Chen Xin .
ACTA PHYSICA SINICA, 2019, 68 (13)
[13]   Acoustic perfect absorbers via Helmholtz resonators with embedded apertures [J].
Huang, Sibo ;
Fang, Xinsheng ;
Wang, Xu ;
Assouar, Badreddine ;
Cheng, Qian ;
Li, Yong .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2019, 145 (01) :254-262
[14]   Acoustic perfect absorbers via spiral metasurfaces with embedded apertures [J].
Huang, Sibo ;
Fang, Xinsheng ;
Wang, Xu ;
Assouar, Badreddine ;
Cheng, Qian ;
Li, Yong .
APPLIED PHYSICS LETTERS, 2018, 113 (23)
[15]   Ultra-thin metamaterial for perfect and quasi-omnidirectional sound absorption [J].
Jimenez, N. ;
Huang, W. ;
Romero-Garcia, V. ;
Pagneux, V. ;
Groby, J. -P. .
APPLIED PHYSICS LETTERS, 2016, 109 (12)
[16]  
Kuttruff H., 2009, ROOM ACOUSTICS, V5, P52
[17]   Absorption of sound by porous layers with embedded periodic arrays of resonant inclusions [J].
Lagarrigue, C. ;
Groby, J. P. ;
Tournat, V. ;
Dazel, O. ;
Umnova, O. .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2013, 134 (06) :4670-4680
[18]   Acoustic metasurface-based perfect absorber with deep subwavelength thickness [J].
Li, Yong ;
Assouar, Badreddine M. .
APPLIED PHYSICS LETTERS, 2016, 108 (06)
[19]   Ultra -broadband acoustic absorption of a thin microperforated panel metamaterial with multi -order resonance [J].
Liu, Chong Rui ;
Wu, Jiu Hui ;
Yang, Zhengrui ;
Ma, Fuyin .
COMPOSITE STRUCTURES, 2020, 246
[20]   A thin multi-order Helmholtz metamaterial with perfect broadband acoustic absorption [J].
Liu, Chong Rui ;
Wu, Jiu Hui ;
Ma, Fuyin ;
Chen, Xu ;
Yang, Zhengrui .
APPLIED PHYSICS EXPRESS, 2019, 12 (08)