基于COMSOL Multiphysics有限元法的声人工结构负切模量分析  

Investigation of negative shear modulus of artificial acoustic structures by finite element simulation based on COMSOL Multiphysics

作　　者：邓科[1] 宋宗根[1] 

机构地区：[1]吉首大学物理与机电工程学院,湖南吉首416000

出　　处：《高师理科学刊》2016年第6期38-40,共3页Journal of Science of Teachers＇College and University

基　　金：吉首大学校级课题(2015JSUJGB01;JC201507)

摘　　要：设计了一个由包层单元组成的声学人工材料,利用COMSOL Multiphysics有限元软件对其进行了色散分析,发现利用该单元的共振转动模式可以实现负的有效切模量.Designed an artificial acoustic structure made of coated cells. Dispersion relation of this structure is investigated by finite element simulations of COMSOL Multiphysics software. This structure is found to exhibit negative shear modulus which is caused by the resonant rotational mode.

关 键 词：色散关系 负切模量 有限元数值模拟 

分 类 号：O415[理学—理论物理]