On the experimental determination of dynamical properties of laminated glass

被引：27

作者：

Lenci, Stefano ^{[1
]}

Consolini, Laura ^{[1
]}

Clementi, Francesco ^{[1
]}

机构：

[1] Polytechnic University of Marche, Ancona

来源：

Annals of Solid and Structural Mechanics | 2015年 / 7卷 / 1-2期

关键词：

Damping factors; Experimental vibrations; Fitting Time Histories (FTH) identification technique; Laminated glass; Natural frequencies;

D O I：

10.1007/s12356-015-0040-z

中图分类号：

学科分类号：

摘要：

In this work, we address experimentally the determination of the dynamical properties, in particular natural frequencies and damping factors, of laminated structural glass. Various specimens, coming from different productions and manufactures, are investigated. Damped free vibrations experiments are performed, where the excitation is provided by an instrumented hammer. The boundary conditions are free–free (the specimens lay on a very flexible sponge substrate). The dynamical characteristics are determined by last squares fitting of time histories, a technique that is very simple, fast and provides very good results. Finally, two theoretical models (a two-layer beam model and a 2D finite element model) are employed to interpret the experimental results, and to determine the (dynamical) elastic properties of the interlayer (which in the present case is made of PVB), which are very difficult to be determined directly. © 2015, Springer-Verlag Berlin Heidelberg.

引用

页码：27 / 43

页数：16

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