Estimation of the equivalent complex modulus of laminated glass beams and its application to sound transmission loss prediction

被引：17
|
作者：
De Belder, K. [1 ]
Pintelon, R. [1 ]
Demol, C. [2 ]
Roose, P. [2 ]
机构：
[1] Vrije Univ Brussels, Dept ELEC, B-1050 Brussels, Belgium
[2] Cytec Surface Specialties, R&D, B-1620 Drogenbos, Belgium
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2010年 / 24卷 / 03期
关键词：
Complex modulus; Young's modulus; Laminated glass; Modal analysis; System identification; Visco-elastic; NONLINEAR DISTORTIONS; LINEAR-SYSTEMS; NONPARAMETRIC IDENTIFICATION; YOUNGS MODULUS; MODAL-ANALYSIS;
D O I：
10.1016/j.ymssp.2009.11.001
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The complex modulus E(j omega) characterizes the visco-elastic behavior of a material, Using a system identification approach, this modulus can be measured via broadband modal analysis experiments. The technique is applied to determine the equivalent complex modulus E(j omega), with its uncertainty bound, of multilayer glass beams from transversal vibration experiments in free-free boundary conditions. This property is related to the effective complex bending stiffness of the laminated glass specimen, and is further used for predicting the sound transmission loss of a multilayer plate. The data are rationalized in the terms of the linear visco-elastic properties of the polymer interlayer. (C) 2009 Elsevier Ltd. All rights reserved.
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收藏
页码：809 / 822
页数：14
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