A theoretical model to predict the low-frequency sound absorption of a Helmholtz resonator array

2006 ◽  
Vol 119 (4) ◽  
pp. 1933-1936 ◽  
Author(s):  
SangRyul Kim ◽  
Yang-Hann Kim ◽  
Jae-Hee Jang
Keyword(s):  
Theoretical Model ◽  
Sound Absorption ◽  
Low Frequency ◽  
Helmholtz Resonator ◽  
Frequency Sound

Low frequency sound absorption of adjustable membrane-type acoustic metamaterials

2022 ◽  
Vol 188 ◽  
pp. 108586
Author(s):  
Tuo Xing ◽  
Xiaoling Gai ◽  
Junjuan Zhao ◽  
Xianhui Li ◽  
Zenong Cai ◽  
...  
Keyword(s):  
Sound Absorption ◽  
Low Frequency ◽  
Acoustic Metamaterials ◽  
Frequency Sound ◽  
Membrane Type

Simulation research on low frequency sound absorption of monostable metamaterials

2021 ◽  
Vol 263 (6) ◽  
pp. 648-652
Author(s):  
Tuo Xing ◽  
Xianhui Li ◽  
Xiaoling Gai ◽  
Zenong Cai ◽  
Xiwen Guan
Keyword(s):  
Magnetic Field ◽  
Finite Element ◽  
Theoretical Model ◽  
Finite Element Simulation ◽  
Sound Absorption ◽  
Magnetic Force ◽  
Low Frequency ◽  
Low Frequencies ◽  
Element Simulation ◽  
Simulation Results

The monostable acoustic metamaterial is realized by placing a flexible panel with a magnetic proof mass in a symmetric magnetic field. The theoretical model of monostable metamaterials has been proposed. The method of finite element simulation is used to verify the theoretical model. The magnetic force of the symmetrical magnetic field is simplified as the relationship between force and displacement, acting on the mass. The simulation results show that as the external magnetic force increases, the peak sound absorption shifts to low frequencies. The theoretical and finite element simulation results are in good agreement.

A double porosity material for low frequency sound absorption

2020 ◽  
Vol 239 ◽  
pp. 111978 ◽  
Author(s):  
Honggang Zhao ◽  
Yang Wang ◽  
Dianlong Yu ◽  
Haibin Yang ◽  
Jie Zhong ◽  
...  
Keyword(s):  
Sound Absorption ◽  
Low Frequency ◽  
Double Porosity ◽  
Frequency Sound
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