Temperature effects on the band gaps of Lamb waves in a one-dimensional phononic-crystal plate (L)

2011 ◽  
Vol 129 (3) ◽  
pp. 1157-1160 ◽  
Author(s):  
Y. Cheng ◽  
X. J. Liu ◽  
D. J. Wu
Keyword(s):  
Temperature Effects ◽  
Lamb Waves ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Band Gaps ◽  
One Dimensional

Lamb wave band gaps in one-dimensional radial phononic crystal slabs

2015 ◽  
Vol 29 (03) ◽  
pp. 1550002 ◽  
Author(s):  
Yinggang Li ◽  
Tianning Chen ◽  
Xiaopeng Wang
Keyword(s):  
Finite Element ◽  
Axial Symmetry ◽  
Lamb Wave ◽  
Lamb Waves ◽  
Phononic Crystal ◽  
Band Gaps ◽  
Slab Thickness ◽  
Wave Band ◽  
Filling Fraction ◽  
One Dimensional

In this paper, we theoretically investigate the band structures of Lamb wave in one-dimensional radial phononic crystal (PC) slabs composed of a series of alternating strips of epoxy and aluminum. The dispersion relations, the power transmission spectra and the displacement fields of the eigenmodes are calculated by using the finite element method based on two-dimensional axial symmetry models in cylindrical coordinates. The axial symmetry model is validated by three-dimensional finite element model in Cartesian coordinates. Numerical results show that the proposed radial PC slabs can yield several complete band gaps with a variable bandwidth exist for elastic waves. Furthermore, the effects of the filling fraction and the slab thickness on the band gaps are further explored numerically. It is worth observing that, with the increase of the filling fraction, both the lower and upper edges of the band gaps are simultaneously shifted to higher frequency, which results from the enhancement interaction between the rigid resonance of the scatterer and the matrix. The slab thickness is the key parameter for the existence and the width of complete band gaps in the radial PC slabs. These properties of Lamb waves in the radial PC plates can potentially be applied to optimize band gaps, generate filters and design acoustic devices in the rotary machines and structures.

Low-frequency band gaps in one-dimensional thin phononic crystal plate with periodic stubbed surface

2011 ◽  
Vol 406 (11) ◽  
pp. 2249-2253 ◽  
Author(s):  
Yuanwei Yao ◽  
Zhilin Hou ◽  
Fugen Wu ◽  
Xin Zhang
Keyword(s):  
Frequency Band ◽  
Phononic Crystal ◽  
Low Frequency ◽  
Crystal Plate ◽  
Band Gaps ◽  
One Dimensional

scholarly journals Study on Lamb Waves in a Composite Phononic Crystal Plate

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 799
Author(s):  
Lili Yuan ◽  
Peng Zhao ◽  
Yong Ding ◽  
Benjie Ding ◽  
Jianke Du ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Band Gap ◽  
Vibration Isolation ◽  
Lamb Waves ◽  
Phononic Crystal ◽  
Volume Ratio ◽  
Geometric Parameters ◽  
Crystal Plate ◽  
Band Gaps ◽  
Frequency Range

In the paper, a phononic crystal plate composed of a magnetorheological elastomer with adjustable band gaps in the low frequency range is constructed. The dispersion relations of Lamb waves are studied by the supercell plane wave expansion method. The transmission responses as well as the displacement fields of Lamb waves are calculated by the finite element method. The influence of geometric parameters on the band gaps, the regulation effect of the volume ratio of Fe particles and the bias magnetic field on the band gaps are analyzed. Based on the numerical results, we find that the volume ratio of Fe particles and the magnetic field affect the band gap effectively. The location and width of the band gaps can be adjusted within a broad frequency range by varying the geometric parameters and magnetic field. We can control the band gap, achieve an appropriate and wide low band gap by selecting proper geometric parameters and applying an external contactless magnetic field to deal with complicated and changeable engineering environment. The results are useful for understanding and optimizing the design of composite vibration isolation plates.

Band gaps of lower-order Lamb wave in thin plate with one-dimensional phononic crystal layer: Effect of substrate

2008 ◽  
Vol 92 (2) ◽  
pp. 023510 ◽  
Author(s):  
Jian Gao ◽  
Xin-Ye Zou ◽  
Jian-Chun Cheng ◽  
Baowen Li
Keyword(s):  
Thin Plate ◽  
Lower Order ◽  
Lamb Wave ◽  
Phononic Crystal ◽  
Band Gaps ◽  
Crystal Layer ◽  
One Dimensional ◽  
Layer Effect

Investigation of a silicon-based one-dimensional phononic crystal plate via the super-cell plane wave expansion method

2010 ◽  
Vol 19 (4) ◽  
pp. 044301 ◽  
Author(s):  
Zhu Xue-Feng ◽  
Liu Sheng-Chun ◽  
Xu Tao ◽  
Wang Tie-Hai ◽  
Cheng Jian-Chun
Keyword(s):  
Plane Wave ◽  
Phononic Crystal ◽  
Expansion Method ◽  
Crystal Plate ◽  
Plane Wave Expansion ◽  
Plane Wave Expansion Method ◽  
One Dimensional ◽  
Wave Expansion ◽  
Super Cell ◽  
Silicon Based

Propagation of Lamb waves in one-dimensional radial phononic crystal plates with periodic corrugations

2014 ◽  
Vol 115 (5) ◽  
pp. 054907 ◽  
Author(s):  
Yinggang Li ◽  
Tianning Chen ◽  
Xiaopeng Wang ◽  
Kunpeng Yu ◽  
Weihua Chen
Keyword(s):  
Lamb Waves ◽  
Phononic Crystal ◽  
One 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

Band gaps of Lamb waves propagating in one-dimensional periodic and nesting Fibonacci superlattices thin plates

2013 ◽  
Vol 546 ◽  
pp. 439-442 ◽  
Author(s):  
Min Zhao ◽  
Ya-Zhuo Xie ◽  
Xing-Gan Zhang ◽  
Jian Gao
Keyword(s):  
Lamb Waves ◽  
Band Gaps ◽  
Thin Plates ◽  
One Dimensional
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