Wave propagation in 3D piezoelectric/viscous liquid phononic crystals

抄録

Abstract
In this paper, the elastic wave properties in 3D piezoelectric/viscous liquid phononic crystals are investigated. Based on the plane wave expansion method, the stop band characteristics are discussed with the viscous liquid influences. From the results, it can be seen that not only some similar behaviors of stop bands for the conventional periodic systems can be found, but also other new and interesting phenomena exist in this new kind of piezoelectric/viscous fluid phononic crystals.

Acknowledgements
The authors wish to express gratitude for the supports provided by the National Natural Science Foundation of China under Grant nos. 11002045, 10672017 and 10632020 for this research work. Yi-Ze Wang also would like to acknowledge the supports provided by the China Postdoctoral Science Foundation and Japan Society for the Promotion of Science (JSPS) to perform research work at Tokyo Institute of Technology, Japan.