Active control of flexural waves in a phononic crystal beam with staggered periodic properties

Wave Motion ◽  
2020 ◽  
Vol 93 ◽  
pp. 102481 ◽  
Author(s):  
Ping Chen ◽  
Yi-Ze Wang ◽  
Yue-Sheng Wang
Keyword(s):  
Active Control ◽  
Phononic Crystal ◽  
Flexural Waves

Active control of a piezoelectric Phononic Crystal using electrical impedance

2014 ◽  
Author(s):  
S.A. Mansoura ◽  
P. Marechal ◽  
B. Morvan ◽  
A.C. Hladky-Hennion ◽  
B. Dubus
Keyword(s):  
Active Control ◽  
Electrical Impedance ◽  
Phononic Crystal

Propagation of flexural waves in phononic crystal thin plates with linear defects

2010 ◽  
Vol 11 (10) ◽  
pp. 827-834 ◽  
Author(s):  
Zong-jian Yao ◽  
Gui-lan Yu ◽  
Yue-sheng Wang ◽  
Zhi-fei Shi ◽  
Jian-bao Li
Keyword(s):  
Phononic Crystal ◽  
Thin Plates ◽  
Flexural Waves ◽  
Linear Defects

Flexural Vibration in a Ternary Locally Resonant Phononic Crystal Thin Plate with Defects

2010 ◽  
Vol 150-151 ◽  
pp. 1282-1285
Author(s):  
Zong Jian Yao ◽  
Gui Lan Yu ◽  
Yue Sheng Wang ◽  
Jian Bao Li
Keyword(s):  
Point Defect ◽  
Thin Plate ◽  
Mass Density ◽  
Phononic Crystal ◽  
Flexural Vibration ◽  
Defect Mode ◽  
Expansion Method ◽  
Flexural Waves ◽  
Filling Fraction ◽  
Linear Defects

The improved supercell plane wave expansion method is applied to theoretically study the propagation of flexural waves in a ternary locally resonant phononic crystal thin plate with a point defect and linear defects. The thin concrete plate composed of a square array of steel cylinders hemmed around by rubber is considered here. Absolute band gaps in low frequency are obtained. For the point defect, the defect mode is localized around the defect, and the magnitude of the resonant defect mode is strongly dependent on the defect filling fraction, mass density and Young’s modulus of the defect cylinder. For the straight linear defects, several resonant linear defect bands appear inside the absolute band gap. And the displacement distributions show that the flexural waves could well propagate along the linear defects.

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