Flexural vibration analysis of a sandwich beam specimen with a partially inserted viscoelastic layer

被引：3

作者：

Park, JT

Choi, NS

机构：

[1] Hanyang Univ, Dept Mech Engn, Ansan 425791, Kyunggi Do, South Korea

[2] Hanyang Univ, Dept Mech Design & Prod, Grad Sch, Seoul 133791, South Korea

来源：

KSME INTERNATIONAL JOURNAL | 2004年 / 18卷 / 03期

关键词：

sandwich beam specimen; viscoelastic layer; sine-sweep test; flexural vibration damping; resonant frequency; modal strain energy method;

D O I：

10.1007/BF02996100

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The flexural vibration characteristics of a sandwich beam system with a partially inserted viscoelastic layer were quantitatively studied using the finite element analysis in combination with the sine-sweep experiment. Asymmetric mode shapes of the flexural vibration were visualized by holographic interferometry, which agreed with those obtained by the finite element simulation. Effects of the length and the thickness of the partial viscoelastic layer on the system loss factor (eta(s)) and resonant frequency (f(r)) were significantly large for both the symmetric and asymmetric modes of the beam system.

引用

页码：347 / 356

页数：10

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