The Influence of Medium Movement on the Occurrence of Band Gaps in Quasi Two Dimensional Phononic Crystals

被引：0
|
作者：
Garus S. [1 ]
Sochacki W. [1 ]
Rzącki J. [2 ]
机构：
[1] Department of Mechanics and Fundamentals of Machinery Design, Faculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Dąbrowskiego 73, Częstochowa
[2] Department of Physics, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Dąbrowskiego 73, Częstochowa
来源：
Acta Physica Polonica A | 2023年 / 144卷 / 05期
关键词：
band gaps; finite-difference time domain (FDTD); moving medium; phononic crystal;
D O I：
10.12693/APhysPolA.144.284
中图分类号：
学科分类号：
摘要：
Phononic quasi-two-dimensional structures, due to their properties, namely the lack of propagation of selected frequency ranges of the mechanical wave, can be used as filters of acoustic waves. In the paper, an analysis of the propagation of mechanical waves in these highly dispersive structures in the conditions of a moving medium was carried out. The influence of the number of metaatom layers on the transmission of a mechanical wave for different medium velocities was analysed. © 2023 Polish Academy of Sciences. All rights reserved.
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页码：284 / 288
页数：4
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