FLEXURAL VIBRATIONS BAND GAPS IN PERIODIC BEAMS INCLUDING ROTARY INERTIA AND SHEAR DEFORMATION EFFECTS

被引：0
|
作者：
YU Dianlong WEN Jihong LIU Yaozong QIU Jing WANG Gang College of Mechantronics Engineering and Automation
机构：
来源：
Chinese Journal of Mechanical Engineering | 2006年 / 01期
关键词：
Phononic crystals Band gaps Rotary inertia Shear deformation;
D O I：
暂无
中图分类号：
TB53 [振动、噪声及其控制];
学科分类号：
083002 ; 120402 ;
摘要：
With the idea of the phononic crystals, the beams with periodic structure are designed. Flexural vibration through such periodic beams composed of two kinds of materials is studied. The emphasis is laid on the effects of rotary inertia and shear deformation. Based on the vibration equation, plane wave expansion method is provided. The acceleration frequency responses of such beams with finite structure are simulated by the finite element method. The frequency ranges of sharp drops in the calculated acceleration frequency response curves are in good agreement with those in the band structures. The findings will be significant in the application of the periodic beams.
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页码：25 / 27
页数：3
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