A numerical method for nonlinear complex modes with application to active-passive damped sandwich structures

被引：15

作者：

Boudaoud, Hakim ^{[1
,2
]}

Belouettar, Salim ^{[1
]}

Daya, El Mostafa ^{[2
]}

Potier-Ferry, Michel ^{[2
]}

机构：

[1] Ctr Rech Publ Henri Tudor, L-1855 Luxembourg, Luxembourg

[2] Univ Paul Verlaine Metz, LPMM, CNRS, UMR 7554,ISGMP, F-57045 Metz 01, France

来源：

ENGINEERING STRUCTURES | 2009年 / 31卷 / 02期

关键词：

Sandwich structures; Viscoelasticity; Piezoelectricity; Active; Passive; Hybrid; Finite element method; Vibrations; Nonlinear eigenvalues; Perturbation technique; Homotopy; Asymptotic numerical method; FINITE-ELEMENT ANALYSIS; CONSTRAINED VISCOELASTIC LAYER; PADE APPROXIMANTS; BOUNDARY-CONDITIONS; EIGENVALUE PROBLEMS; BEAMS; VIBRATIONS; COMPOSITES; SHELLS;

D O I：

10.1016/j.engstruct.2008.08.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, a numerical method is proposed for determining complex vibrations modes of sandwich structures with piezoelectric and viscoelastic layers. Based on homotopy and asymptotic numerical techniques, this method leads to the damping properties calculation (loss factor and natural frequency per mode)of the hybrid sandwich structure. The numerical results of the loss factor and natural frequency are compared to those obtained from analytical beam model and from numerical studies the modal strain energy method. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：284 / 291

页数：8

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