Coupled flexural-torsional vibration band gap in periodic beam including warping effect

被引：11

作者：

Jian-Yu, Fang ^{[1
]}

Dian-Long, Yu ^{[1
]}

Xiao-Yun, Han ^{[1
]}

Li, Cai ^{[1
]}

机构：

[1] Institute of Mechatronical Engineering, PBG Research Center, National University of Defense Technology

来源：

Chinese Physics B | 2009年 / 18卷 / 04期

关键词：

Coupled flexural-torsional beam; Phononic crystals; Transfer matrix method; Warping stiffness;

D O I：

10.1088/1674-1056/18/4/004

中图分类号：

学科分类号：

摘要：

The propagation of coupled flexural-torsional vibration in the periodic beam including warping effect is investigated with the transfer matrix theory. The band structures of the periodic beam, both including warping effect and ignoring warping effect, are obtained. The frequency response function of the finite periodic beams is simulated with finite element method, which shows large vibration attenuation in the frequency range of the gap as expected. The effect of warping stiffness on the band structure is studied and it is concluded that substantial error can be produced in high frequency range if the effect is ignored. The result including warping effect agrees quite well with the simulated result. © 2009 Chin. Phys. Soc. and IOP Publishing Ltd.

引用

页码：1316 / 1321

页数：5

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