Propagation of elastic waves in beams - Including damping effects

被引：4
|
作者：
Krawczuk, M
Zak, A
Ostachowicz, W
Cartmell, M
机构：
[1] Inst Fluid Flow Machinery, PL-80952 Gdansk, Poland
[2] Univ Glasgow, Dept Mech Engn, Glasgow G12 8QQ, Lanark, Scotland
来源：
MODERN PRACTICE IN STRESS AND VIBRATION ANALYSIS | 2003年 / 440-4卷
关键词：
beams; damping; spectral element method; wave propagation;
D O I：
10.4028/www.scientific.net/MSF.440-441.179
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work certain results has been presented of an analysis of the influence of material damping on changes in the propagation of elastic waves in beams. A new and original method has been proposed for formulating the dynamic stiffness matrix for a beam spectral finite element. This new approach enables one to enhance the proposed element by including terms previously ignored likes material damping or initial stresses. Numerical examples presented illustrate the influence of damping intensity on the range of propagating waves, as well as the dispersion effects due to the damping.
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页码：179 / 186
页数：8
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