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Chin. Phys. B, 2016, Vol. 25(3): 034301    DOI: 10.1088/1674-1056/25/3/034301
Special Issue: Virtual Special Topic — Acoustics
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Wave propagation in beams with anti-symmetric piezoelectric shunting arrays

Sheng-Bing Chen(陈圣兵)1, Gang Wang(王刚)2
1. China Aerodynamics Research and Development Center, Mianyang 621000, China;
2. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
Abstract  Piezoelectric shunting arrays are employed to control the wave propagation in flexible beams. Contrary to conventional symmetric configuration, a substrate beam with anti-symmetric shunting arrays is investigated by adapted transfer matrix method. Compared with symmetric scheme, the anti-symmetric one demonstrates some distinctive characteristics. Primarily, the longitudinal and flexural waves are coupled, so they are correlated and must be considered simultaneously. Moreover, the attenuation of flexural wave is much stronger in anti-symmetric scenario, while the longitudinal wave demonstrates the converse side. As a result, the anti-symmetric scheme can be utilized to improve the vibration isolation capability of shunting arrays. Finally, the theoretical analyses are validated by finite element simulations.
Keywords:  piezoelectric shunting      metamaterial      phononic      band gaps  
Received:  12 July 2015      Revised:  04 September 2015      Accepted manuscript online: 
PACS:  43.20.Bi (Mathematical theory of wave propagation)  
  43.40.+s (Structural acoustics and vibration)  
  62.30.+d (Mechanical and elastic waves; vibrations)  
  77.65.-j (Piezoelectricity and electromechanical effects)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 51322502).
Corresponding Authors:  Sheng-Bing Chen     E-mail:  shengbingchen@cardc.cn

Cite this article: 

Sheng-Bing Chen(陈圣兵), Gang Wang(王刚) Wave propagation in beams with anti-symmetric piezoelectric shunting arrays 2016 Chin. Phys. B 25 034301

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