Wavelet-based method for calculating elastic band gaps of two-dimensional phononic crystals

2006 ◽  
Vol 74 (22) ◽  
Author(s):  
Zhi-Zhong Yan ◽  
Yue-Sheng Wang
Keyword(s):  
Phononic Crystals ◽  
Band Gaps ◽  
Two Dimensional ◽  
Elastic Band ◽  
Elastic Band Gaps

Tunable Band Gaps of Acoustic Waves in Two-Dimensional Phononic Crystals With Reticular Band Structures

2009 ◽  
Author(s):  
Zi-Gui Huang ◽  
Yunn-Lin Hwang ◽  
Pei-Yu Wang ◽  
Yen-Chieh Mao
Keyword(s):  
Acoustic Waves ◽  
Composite Structures ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Sound Insulation ◽  
Two Dimensional ◽  
The Finite Element Method ◽  
Elastic Band ◽  
Band Structures ◽  
Elastic Band Gaps

The excellent applications and researches of so-called photonic crystals raise the exciting researches of phononic crystals. By the analogy between photon and phonon, repetitive composite structures that are made up of different elastic materials can also prevent elastic waves of some certain frequencies from passing by, i.e., the frequency band gap features also exist in acoustic waves. In this paper, we present the results of the tunable band gaps of acoustic waves in two-dimensional phononic crystals with reticular band structures using the finite element method. Band gaps variations of the bulk modes due to different thickness and angles of reticular band structures are calculated and discussed. The results show that the total elastic band gaps for mixed polarization modes can be enlarged or reduced by adjusting the orientation of the reticular band structures. The phenomena of band gaps of elastic or acoustic waves can potentially be utilized for vibration-free, high-precision mechanical systems, and sound insulation.

Acoustic Waves in Two-Dimensional Phononic Crystals With Reticular Geometric Structures

2011 ◽  
Vol 133 (3) ◽  
Author(s):  
Zi-Gui Huang ◽  
Zheng-Yu Chen
Keyword(s):  
Band Gap ◽  
Acoustic Waves ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Sound Insulation ◽  
Two Dimensional ◽  
Elastic Band ◽  
Geometric Structures ◽  
2D And 3D ◽  
Elastic Band Gaps

Previous studies on photonic crystals raise the exciting topic of phononic crystals. This paper presents the results of tunable band gaps in the acoustic waves of two-dimensional phononic crystals with reticular geometric structures using the 2D and 3D finite element methods. This paper calculates and discusses the band gap variations of the bulk modes due to different sizes of reticular geometric structures. Results show that adjusting the orientation of the reticular geometric structures can increase or decrease the total elastic band gaps for mixed polarization modes. The band gap phenomena of elastic or acoustic waves can potentially be utilized to achieve vibration-free, high-precision mechanical systems, and sound insulation.

Effects of material parameters on elastic band gaps of three-dimensional solid phononic crystals

2013 ◽  
Vol 87 (5) ◽  
pp. 055604 ◽  
Author(s):  
Tian-Xue Ma ◽  
Xiao-Xing Su ◽  
Yue-Sheng Wang ◽  
Yan-Feng Wang
Keyword(s):  
Three Dimensional ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Elastic Band ◽  
Material Parameters ◽  
Elastic Band Gaps

Analysis of Frequency Band Gaps in a Plate With Periodic Stubbed Surface

2010 ◽  
Author(s):  
Zi-Gui Huang
Keyword(s):  
Crystal Structure ◽  
Frequency Band ◽  
Acoustic Waves ◽  
Phononic Crystals ◽  
Band Gaps ◽  
The Finite Element Method ◽  
Acoustic Wave Propagation ◽  
Elastic Band ◽  
Elastic Band Gaps ◽  
Single Medium

The applications and researches of so-called photonic crystals raise the exciting researches of acoustic wave propagation and frequency band gaps in phononic crystals. The photonic crystal structure can be modeled in two different forms, namely the periodically-repeated dual materials, or a single medium with periodically-repeated stubbed surface. This paper presents the results of the tunable band gaps of acoustic waves in a plate with periodic stubbed surface using the finite element method. Band gaps variations of the plate modes due to different oriented angles of periodic stubbed surface are calculated and discussed. The results show that the elastic band gaps for plate modes can be enlarged or reduced by adjusting the orientation of stubbed surface. The phenomena in this idea can potentially be utilized for the design of new resonance frequency devices.

scholarly journals Lumped-mass method on calculation of elastic band gaps of one-dimensional phononic crystals

2004 ◽  
Vol 53 (10) ◽  
pp. 3384
Author(s):  
Wen Ji-Hong ◽  
Wang Gang ◽  
Liu Yao-Zong ◽  
Yu Dian-Long
Keyword(s):  
Phononic Crystals ◽  
Band Gaps ◽  
Lumped Mass ◽  
Elastic Band ◽  
One Dimensional ◽  
Lumped Mass Method ◽  
Elastic Band Gaps

scholarly journals Wave band gaps in two-dimensional piezoelectric/piezomagnetic phononic crystals

2008 ◽  
Vol 45 (14-15) ◽  
pp. 4203-4210 ◽  
Author(s):  
Yi-Ze Wang ◽  
Feng-Ming Li ◽  
Wen-Hu Huang ◽  
Xiaoai Jiang ◽  
Yue-Sheng Wang ◽  
...  
Keyword(s):  
Phononic Crystals ◽  
Band Gaps ◽  
Wave Band ◽  
Two Dimensional
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