Design and optimization of membrane-type acoustic metamaterials using genetic algorithms

2016 ◽  
Vol 140 (4) ◽  
pp. 3431-3431
Author(s):  
Matthew G. Blevins ◽  
Siu-Kit Lau ◽  
Lily M. Wang
Keyword(s):  
Genetic Algorithms ◽  
Acoustic Metamaterials ◽  
Design And Optimization ◽  
Membrane Type

Adjustable sound insulation frequency band through the combination of membrane-type acoustic metamaterial array

2021 ◽  
Vol 263 (1) ◽  
pp. 5869-5877
Author(s):  
Xiang Wu ◽  
TengLong Jiang ◽  
JianWang Shao ◽  
GuoMing Deng ◽  
Chang Jin
Keyword(s):  
Thin Films ◽  
Frequency Band ◽  
Transmission Loss ◽  
Structural Parameters ◽  
Sound Insulation ◽  
Acoustic Metamaterials ◽  
Additional Mass ◽  
Acoustic Metamaterial ◽  
Material Parameters ◽  
Membrane Type

Membrane-type acoustic metamaterials are thin films or plates composed of periodic units with small additional mass. A large number of studies have shown that these metamaterials exhibit tunable anti-resonance, and their transmission loss values are much higher than the corresponding quality laws. At present, most researches on membrane-type acoustic metamaterials focus on the unit cell, and the sound insulation frequency band can only be adjusted by adjusting the structural parameters and material parameters. In this paper, two kinds of acoustic metamaterials with different structures are designed, which are the center placement of the mass and the eccentric placement of the mass.The two structures have different sound insulation characteristics. By designing different array combinations of acoustic metamaterials, the sound insulation peaks of different frequency bands are obtained. This paper studies the corresponding combination law, and effectively realizes the adjustable sound insulation frequency band.

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

An impedance-mobility model of stacked membrane-type acoustic metamaterials

2015 ◽  
Vol 137 (4) ◽  
pp. 2298-2298 ◽  
Author(s):  
Matthew G. Blevins ◽  
Siu-Kit Lau ◽  
Lily M. Wang
Keyword(s):  
Mobility Model ◽  
Acoustic Metamaterials ◽  
Membrane Type

Instrument design and optimization using genetic algorithms

2006 ◽  
Vol 77 (10) ◽  
pp. 105107 ◽  
Author(s):  
Robert Hölzel ◽  
Phillip M. Bentley ◽  
Peter Fouquet
Keyword(s):  
Genetic Algorithms ◽  
Instrument Design ◽  
Design And Optimization
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