Lamb waves in two-dimensional phononic crystal slabs with neck structures

2013 ◽  
Vol 113 (21) ◽  
pp. 214908 ◽  
Author(s):  
Kunpeng Yu ◽  
Tianning Chen ◽  
Xiaopeng Wang ◽  
Yinggang Li
Keyword(s):  
Lamb Waves ◽  
Phononic Crystal ◽  
Two Dimensional

Negative refraction of zero order flexural Lamb waves through a two-dimensional phononic crystal

2010 ◽  
Vol 97 (12) ◽  
pp. 121919 ◽  
Author(s):  
J. Pierre ◽  
O. Boyko ◽  
L. Belliard ◽  
J. O. Vasseur ◽  
B. Bonello
Keyword(s):  
Negative Refraction ◽  
Lamb Waves ◽  
Phononic Crystal ◽  
Zero Order ◽  
Two Dimensional

Interface-guided mode of Lamb waves in a two-dimensional phononic crystal plate

2015 ◽  
Vol 24 (5) ◽  
pp. 054301 ◽  
Author(s):  
Ping-Ping Huang ◽  
Yuan-Wei Yao ◽  
Fu-Gen Wu ◽  
Xin Zhang ◽  
Jing Li ◽  
...  
Keyword(s):  
Lamb Waves ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Two Dimensional ◽  
Guided Mode

Lamb waves in two-dimensional phononic crystal plate with anisotropic inclusions

Ultrasonics ◽  
2011 ◽  
Vol 51 (5) ◽  
pp. 602-605 ◽  
Author(s):  
Yuanwei Yao ◽  
Fugen Wu ◽  
Zhilin Hou ◽  
Zhang Xin
Keyword(s):  
Lamb Waves ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Two Dimensional

Symmetric and Anti-Symmetric Lamb Waves in a Two-Dimensional Phononic Crystal Plate

2010 ◽  
Vol 27 (7) ◽  
pp. 074303 ◽  
Author(s):  
Li Yong ◽  
Hou Zhi-Lin ◽  
Fu Xiu-Jun ◽  
Badreddine M Assouar
Keyword(s):  
Lamb Waves ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Two Dimensional

Laser-Ultrasonic Investigation on Lamb Waves in Two-Dimensional Phononic Crystal Plates

2014 ◽  
Vol 36 (5-6) ◽  
pp. 1195-1201
Author(s):  
Jing Shi Wang ◽  
Ying Cheng ◽  
Xiao Dong Xu ◽  
Xiao Jun Liu
Keyword(s):  
Lamb Waves ◽  
Phononic Crystal ◽  
Two Dimensional ◽  
Laser Ultrasonic ◽  
Ultrasonic Investigation

scholarly journals Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hai-Fei Zhu ◽  
Xiao-Wei Sun ◽  
Ting Song ◽  
Xiao-Dong Wen ◽  
Xi-Xuan Liu ◽  
...  
Keyword(s):  
Phononic Crystal ◽  
Real Life ◽  
Low Frequency ◽  
Acoustic Vibration ◽  
Crystal Plate ◽  
Frequency Noise ◽  
Two Dimensional ◽  
The Matrix ◽  
Noise Frequency ◽  
Realtime Control

AbstractIn view of the influence of variability of low-frequency noise frequency on noise prevention in real life, we present a novel two-dimensional tunable phononic crystal plate which is consisted of lead columns deposited in a silicone rubber plate with periodic holes and calculate its bandgap characteristics by finite element method. The low-frequency bandgap mechanism of the designed model is discussed simultaneously. Accordingly, the influence of geometric parameters of the phononic crystal plate on the bandgap characteristics is analyzed and the bandgap adjustability under prestretch strain is further studied. Results show that the new designed phononic crystal plate has lower bandgap starting frequency and wider bandwidth than the traditional single-sided structure, which is due to the coupling between the resonance mode of the scatterer and the long traveling wave in the matrix with the introduction of periodic holes. Applying prestretch strain to the matrix can realize active realtime control of low-frequency bandgap under slight deformation and broaden the low-frequency bandgap, which can be explained as the multiple bands tend to be flattened due to the localization degree of unit cell vibration increases with the rise of prestrain. The presented structure improves the realtime adjustability of sound isolation and vibration reduction frequency for phononic crystal in complex acoustic vibration environments.

Highly directional acoustic wave radiation based on asymmetrical two-dimensional phononic crystal resonant cavity

2006 ◽  
Vol 88 (26) ◽  
pp. 263505 ◽  
Author(s):  
Manzhu Ke ◽  
Zhengyou Liu ◽  
Pei Pang ◽  
Wengang Wang ◽  
Zhigang Cheng ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Phononic Crystal ◽  
Resonant Cavity ◽  
Wave Radiation ◽  
Two Dimensional
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