scholarly journals Nonlinear Acoustic Metamaterials for Sound Attenuation Applications

2011 ◽  
Author(s):  
Jinkyu Yang ◽  
Chiara Daraio
Keyword(s):  
Sound Attenuation ◽  
Acoustic Metamaterials ◽  
Nonlinear Acoustic

scholarly journals Bridging-Coupling Band Gaps in Nonlinear Acoustic Metamaterials

2018 ◽  
Vol 10 (5) ◽  
Author(s):  
Xin Fang ◽  
Jihong Wen ◽  
Dianlong Yu ◽  
Jianfei Yin
Keyword(s):  
Band Gaps ◽  
Acoustic Metamaterials ◽  
Nonlinear Acoustic

Microporous and Flexible Framework Acoustic Metamaterials for Sound Attenuation and Contrast Agent Applications

2018 ◽  
Vol 10 (51) ◽  
pp. 44226-44230 ◽  
Author(s):  
Quin R. S. Miller ◽  
Satish K. Nune ◽  
H. Todd Schaef ◽  
Ki Won Jung ◽  
Kayte M. Denslow ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Sound Attenuation ◽  
Acoustic Metamaterials ◽  
Flexible Framework

Theoretical investigation of the sound attenuation of membrane-type acoustic metamaterials

2012 ◽  
Vol 376 (17) ◽  
pp. 1489-1494 ◽  
Author(s):  
Yuguang Zhang ◽  
Jihong Wen ◽  
Yong Xiao ◽  
Xisen Wen ◽  
Jianwei Wang
Keyword(s):  
Theoretical Investigation ◽  
Sound Attenuation ◽  
Acoustic Metamaterials ◽  
Membrane Type

Modulational instability and rogue waves in one-dimensional nonlinear acoustic metamaterials: case of diatomic model

2021 ◽  
Author(s):  
Joseph Mora ◽  
Justin Mibaile ◽  
Vroumsia David ◽  
Sylvere Azakine ◽  
Gambo Betchewe
Keyword(s):  
Integrable System ◽  
Taylor Series ◽  
Acoustic Waves ◽  
Perturbation Methods ◽  
Modulational Instability ◽  
Rogue Waves ◽  
Acoustic Metamaterials ◽  
One Dimensional ◽  
Acoustic Metamaterial ◽  
Nonlinear Acoustic

Abstract In this paper, by means of the expanded Taylor series and Lindstedt-Poincar ́e perturbation methods, the coupled nonlinear Schrödinger equations (CNLSE) modeling the propagation of acoustic waves in acoustic metamaterial is obtained. Using these equations, the Modulational Instability (MI) phenomenon is observed in disturbance mode. Manakov integrable system is derived with suitable parameters and we shown that the Rogue Waves (RWs) can propagate diatomic acoustic metamaterials.

Breaking reciprocity and preserving-frequency using linear acoustic metamaterials

2021 ◽  
Vol 35 (06) ◽  
pp. 2150089
Author(s):  
Hongzhu Li ◽  
Qian Ding ◽  
Zhisai Ma ◽  
Qingquan Ren ◽  
Xiaofei Lyu ◽  
...  
Keyword(s):  
Black Holes ◽  
Wave Propagation ◽  
Acoustic Metamaterials ◽  
Nonlinear Materials ◽  
Time Modulation ◽  
Waveguide Devices ◽  
Simulation And Experiment ◽  
Nonlinear Acoustic ◽  
Acoustic Black Holes ◽  
Asymmetric Wave

In this paper, we introduce a linear waveguide implemented by cascading acoustic black holes (ABHs). The asymmetric wave propagation, up to 46 dB, is observed and verified in simulation and experiment. It is shown that, in comparison with the previous nonlinear acoustic diodes, our waveguide can rectify the sound without shifting the impinging sound frequency. The device is simple and easy-to-fabricate without using complex nonlinear materials and space–time modulation. This feature could open a new route for designing acoustic waveguide devices that preserve the key information.

scholarly journals Second-Harmonic Generation in Membrane-Type Nonlinear Acoustic Metamaterials

Crystals ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 86 ◽  
Author(s):  
Jiangyi Zhang ◽  
Vicente Romero-García ◽  
Georgios Theocharis ◽  
Olivier Richoux ◽  
Vassos Achilleos ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Acoustic Metamaterials ◽  
Nonlinear Acoustic ◽  
Membrane Type

Broadband fractal acoustic metamaterials for low-frequency sound attenuation

2016 ◽  
Vol 109 (13) ◽  
pp. 131901 ◽  
Author(s):  
Gang Yong Song ◽  
Qiang Cheng ◽  
Bei Huang ◽  
Hui Yuan Dong ◽  
Tie Jun Cui
Keyword(s):  
Low Frequency ◽  
Sound Attenuation ◽  
Acoustic Metamaterials ◽  
Frequency Sound

Analytical Model for Low-Frequency Transmission Loss Calculation of Zero-Prestressed Plates With Arbitrary Mass Loading

2019 ◽  
Vol 141 (4) ◽  
Author(s):  
William T. Edwards ◽  
Chia-Ming Chang ◽  
Geoffrey McKnight ◽  
Steven R. Nutt
Keyword(s):  
Boundary Conditions ◽  
Analytical Model ◽  
Transmission Loss ◽  
Mass Density ◽  
Low Frequency ◽  
Sound Attenuation ◽  
Mode Shapes ◽  
Natural Mode ◽  
Rectangular Plates ◽  
Acoustic Metamaterials

As the importance of sound attenuation through weight-critical structures has grown and mass law based strategies have proven impractical, engineers have pursued alternative approaches for sound attenuation. Membrane-type acoustic metamaterials have demonstrated sound attenuation significantly higher than mass law predictions for narrow, tunable bandwidths. Similar phenomena can be achieved with plate-like structures. This paper presents an analytical model for the prediction of transmission loss through rectangular plates arbitrarily loaded with rigid masses, accommodating any combination of clamped and simply supported boundary conditions. Equations of motion are solved using a modal expansion approach, incorporating admissible eigenfunctions given by the natural mode shapes of single-span beams. The effective surface mass density is calculated and used to predict the transmission loss of low-frequency sound through the plate–mass structure. To validate the model, finite element results are compared against analytical predictions of modal behavior and shown to achieve agreement. The model is then used to explore the influence of various combinations of boundary conditions on the transmission loss properties of the structure, revealing that the symmetry of plate mounting conditions strongly affects transmission loss behavior and is a critical design parameter.

Spectro-spatial analysis of wave packet propagation in nonlinear acoustic metamaterials

2018 ◽  
Vol 413 ◽  
pp. 250-269 ◽  
Author(s):  
W.J. Zhou ◽  
X.P. Li ◽  
Y.S. Wang ◽  
W.Q. Chen ◽  
G.L. Huang
Keyword(s):  
Spatial Analysis ◽  
Wave Packet ◽  
Acoustic Metamaterials ◽  
Nonlinear Acoustic

Nonlinear acoustic metamaterials

2019 ◽  
Vol 145 (3) ◽  
pp. 1754-1754
Author(s):  
Samuel P. Wallen ◽  
Mark F. Hamilton ◽  
Michael R. Haberman
Keyword(s):  
Acoustic Metamaterials ◽  
Nonlinear Acoustic
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