Vibration and damping analysis of laminated composite and sandwich shells

被引：12
|
作者：
Rikards, R
Chate, A
机构：
[1] Institute of Computer Analysis of Structures, Riga Technical University, Riga
来源：
MECHANICS OF COMPOSITE MATERIALS AND STRUCTURES | 1997年 / 4卷 / 03期
关键词：
D O I：
10.1080/10759419708945881
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Damping analysis under harmonic oscillations of a laminated composite and sandwich shells is performed. Finite-element modeling is based on the first-order shear deformation theory including rotation around the normal. The second-order isoparametric triangular finite-element nodal variables are three displacements and three rotations. A shear correction factor is introduced to account for the fact that the transverse shear distribution is not uniform through the shell thickness. A model of hysteretic damping is used to evaluate damping properties of the structure in harmonic oscillations. Damped frequencies of the shell are calculated by using the Lanczos method Modal damping of the structure is calculated by using the energy method Numerical examples of damping and vibration analysis of laminated composite and sandwich cylindrical and conical shells are presented The numerical results are in good agreement with the reference solutions and experimental data.
引用
收藏
页码：209 / 232
页数：24
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