Pseudospins and topological edge states for fundamental antisymmetric Lamb modes in snowflakelike phononic crystal slabs

2019 ◽  
Vol 146 (1) ◽  
pp. 729-735 ◽  
Author(s):  
Shao-yong Huo ◽  
Jiu-jiu Chen ◽  
Lu-yang Feng ◽  
Hong-bo Huang
Keyword(s):  
2019 ◽  
Vol 12 (9) ◽  
pp. 094003 ◽  
Author(s):  
Shao-yong Huo ◽  
Hong-bo Huang ◽  
Lu-yang Feng ◽  
Jiu-jiu Chen

2007 ◽  
Vol 90 (8) ◽  
pp. 083509 ◽  
Author(s):  
Manzhu Ke ◽  
Zhengyou Liu ◽  
Pei Pang ◽  
Chunyin Qiu ◽  
Degang Zhao ◽  
...  

2020 ◽  
Vol 69 (15) ◽  
pp. 156201
Author(s):  
Zhou-Fu Zheng ◽  
Jian-Fei Yin ◽  
Ji-Hong Wen ◽  
Dian-Long Yu

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
Yabin Jin ◽  
Daniel Torrent ◽  
Bahram Djafari-Rouhani
Keyword(s):  

2012 ◽  
Vol 132 (5) ◽  
pp. 686-690
Author(s):  
Yusuke Kanno ◽  
Kenji Tsuruta ◽  
Kazuhiro Fujimori ◽  
Hideki Fukano ◽  
Shigeji Nogi

Author(s):  
Edson Jansen Pedrosa de Miranda Junior ◽  
Jose Maria Campos dos Santos

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hai-Fei Zhu ◽  
Xiao-Wei Sun ◽  
Ting Song ◽  
Xiao-Dong Wen ◽  
Xi-Xuan Liu ◽  
...  

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.


ACS Nano ◽  
2021 ◽  
Author(s):  
Jincheng Zhuang ◽  
Jin Li ◽  
Yundan Liu ◽  
Dan Mu ◽  
Ming Yang ◽  
...  

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