层状周期结构动力衰减域特性研究  

Vibration attenuation zones of a laminated periodic structure

作　　者：程志宝[1] 石志飞[1] 向宏军[1] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《振动与冲击》2013年第9期178-182,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(51178036)

摘　　要：从数学物理方程角度出发,研究层状周期结构的动力衰减域特性。分析衰减域三个控制因素及影响因素。对有限层状周期结构,进行动力谐响应及瞬态响应分析;振动台隔震性能试验表明,层状周期结构对外部激励具有隔离或减弱作用。该研究为层状周期结构用于工程结构隔震、减振奠定了基础。The effects of material and geometry properties on the three important parameters of the first attenuation zone of a laminated periodic structure were studied. The harmonic and transient responses of a finite laminated periodic structure were analysed based on mathematical physical equations to highlight the vibration attenuation when the frequency falls into the band gaps. Corresponding isolation performance tests were carried out on a vibration shaker. The present investigation provides a sound background for the application of laminated periodic structures in isolation or vibration attenuation for engineering structures.

关 键 词：周期结构 衰减域 隔震 减振 

分 类 号：TN011[电子电信—物理电子学]