Band gaps in phononic crystal beam-foundation systems

被引：0

作者：

Han, Lin ^{[1
]}

Zhang, Yan ^{[1
]}

Jiang, Lin-Hua ^{[1
]}

Ni, Zhi-Qiang ^{[1
]}

机构：

[1] Hohai Univ, Coll Mech & Mat, Nanjing 210098, Jiangsu, Peoples R China

来源：

OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2013年 / 7卷 / 9-10期

基金：

中国国家自然科学基金;

关键词：

Phononic crystal; Band gap; Beam-foundation system; Finite element analysis; WAVE EXPANSION METHOD; FLEXURAL VIBRATIONS; COMPOSITES;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phononic crystal (PC) beam-foundation systems are introduced to study the flexural vibration band gaps (BGs). Two general beam types, Euler beam and Timoshenko beam, are both considered. The finite periodic structures are constructed to describe the PCs in practice. The finite element analysis of the finite periodic structures shows that the stiffness of foundation influences the distribution of BGs. Moreover, the PC Timoshenko beam-foundation system has wider applicability in the engineering than the system with Euler beam. The periodic numbers of the finite structures affect the attenuation in BGs; the more periodic numbers give more distinct BGs.

引用

页码：631 / 634

页数：4

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