一维玻璃/硅橡胶声子晶体纵向振动带隙的控制研究  

A Study on the Control of the Longitudinal Vibration Band Gap for One-Dimensional Phonon Crystal Compounded of Glass and Silicone Rubber

作　　者：唐启祥[1] 邱学云[1] 

机构地区：[1]文山学院信息科学学院,云南文山663000

出　　处：《文山学院学报》2014年第3期62-65,92,共5页Journal of Wenshan University

基　　金：云南省教育厅科研基金项目"一维周期性弹性材料结构传输特性的研究"

摘　　要：以玻璃/硅橡胶所构成的一维杆状声子晶体纵向振动带隙特性为研究对象,基于集中质量法,采用MATLAB编程,在改变晶格常数、组分比、密度、杨氏模量及泊松比等参数的情况下,数值模拟了该声子晶体的带隙起止频率及带宽变化的规律。结果显示,晶格常数、硅橡胶的组分比和杨氏模量对带隙的起止频率和宽度的影响较为明显,而其他参数的影响较小,甚至可以忽略不计。Based on the lumped mass method and MATLAB program, the longitudinal vibration band gap properties of one-dimensional rod structure phonon crystal compounded of glass and silicone rubber are studied. By Changing the parameters, such as lattice constant, component ratio, density, Young＇s modulus and Poisson＇s ratio, the variation of the photonic crystal start frequency, stop frequency and bandwidth are simulated. The results show the effects caused by the lattice constants, silicone rubber component ratio and Young＇s modulus on the band gap are more obvious, but the influence caused by the other parameters is less or negligible.

关 键 词：一维声子晶体 带隙控制 纵向振动 玻璃 硅橡胶 集中质量法 

分 类 号：O321[理学—一般力学与力学基础]