声子晶体与汽车振动噪声控制  

The Phononic Crystals and Automobile Vibration Noise Control

作　　者：赵树恩[1] 李以农[1] 郑玲[1] 谢敏松[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《材料导报》2007年第4期84-86,95,共4页Materials Reports

基　　金：重庆市自然科学基金资助项目(No8426)

摘　　要：声子晶体是一种具有弹性波带隙的周期性结构功能材料,振动频率在声子晶体带隙范围内的振动会被抑制或禁止传播,它所具有的这种弹性波带隙特性为减振技术的发展提供了一种新的可能。在介绍声子晶体的基本理论及特征的基础上,阐述了声子晶体在振动与噪声控制领域的研究现状及声子晶体在汽车减振降噪方面的应用。Phononic crystals are materials with elastic vibration band gaps where the propagation of vibrations is restrained or forbidden. This property provides a new prospect for technology of vibration attenuation. In this paper, based on the concept and characteristics of phononic crystals, application of phononic crystals, especially in control of vibration and noise is expatiated. Finally, the prospect of phononic crystals application in the field of automobile vibration and noise reduction is forecasted.

关 键 词：声子晶体 带隙 振动 噪声控制 

分 类 号：TB535[理学—物理]