Project supported by the National Natural Science Foundation of China(Grant Nos.51305448 and 51275519)
This paper presents a semi-analytical solution for the vibration and sound radiation of a semi-infinite plate covered by a decoupling layer consisting of locally resonant acoustic metamaterial. Formulations are derive...
supported by the National Natural Science Foundation of China(Grant No.51275519)
Locally resonant sonic materials, due to their ability to control the propagation of low-frequency elastic waves, have become a promising option for underwater sound absorption materials. In this paper, the finite ele...
Project supported by the National Natural Science Foundation of China(Grant Nos.1100429 and 51275519)
The acoustic properties of anechoic layers with a singly periodic array of cylindrical scatterers are investigated. A method combined plane wave expansion and finite element analysis is extended for out-of-plane incid...