Focusing of the lowest antisymmetric Lamb wave in a gradient-index phononic crystal plate

2011 ◽  
Vol 98 (17) ◽  
pp. 171911 ◽  
Author(s):  
Tsung-Tsong Wu ◽  
Yan-Ting Chen ◽  
Jia-Hong Sun ◽  
Sz-Chin Steven Lin ◽  
Tony Jun Huang
Keyword(s):  
Lamb Wave ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Gradient Index

Thermal tuning of Lamb wave band structure in a two-dimensional phononic crystal plate

2011 ◽  
Vol 110 (12) ◽  
pp. 123503 ◽  
Author(s):  
Yuanwei Yao ◽  
Fugen Wu ◽  
Xin Zhang ◽  
Zhilin Hou
Keyword(s):  
Band Structure ◽  
Lamb Wave ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Wave Band ◽  
Two Dimensional ◽  
Thermal Tuning

Piezoelectric-sensitive mode of lamb wave in one-dimensional piezoelectric phononic crystal plate

Wave Motion ◽  
2015 ◽  
Vol 54 ◽  
pp. 66-75 ◽  
Author(s):  
Yi-Fan Zhu ◽  
Ying Yuan ◽  
Xin-Ye Zou ◽  
Jian-Chun Cheng
Keyword(s):  
Lamb Wave ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
One Dimensional

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.

Band gap and defect state engineering in a multi-stub phononic crystal plate

2015 ◽  
Vol 117 (15) ◽  
pp. 154301 ◽  
Author(s):  
Ping Jiang ◽  
Xiao-Peng Wang ◽  
Tian-Ning Chen ◽  
Jian Zhu
Keyword(s):  
Band Gap ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Defect State

Lamb wave band gaps in locally resonant phononic crystal strip waveguides

2012 ◽  
Vol 376 (4) ◽  
pp. 579-583 ◽  
Author(s):  
Yuanwei Yao ◽  
Fugen Wu ◽  
Xin Zhang ◽  
Zhilin Hou
Keyword(s):  
Lamb Wave ◽  
Phononic Crystal ◽  
Band Gaps ◽  
Wave Band

A highly sensitive compact liquid sensor based on slotted phononic crystal plates

Lab on a Chip ◽  
2016 ◽  
Vol 16 (23) ◽  
pp. 4595-4600 ◽  
Author(s):  
Chen Wang ◽  
Feiyan Cai ◽  
Fei Li ◽  
Long Meng ◽  
Jiangyu Li ◽  
...  
Keyword(s):  
Phononic Crystal ◽  
High Sensitivity ◽  
Crystal Plate ◽  
Liquid Sample ◽  
Highly Sensitive

We report a slotted phononic crystal plate (SPCP) sensor detecting a small amount of liquid sample with a high sensitivity.

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