A quasi-3D layer-wise finite element model for vibroacoustic analysis of finite sandwich plates with frequency-dependent viscoelastic core

被引：4

作者：

Wang, Bo ^{[1
]}

Dou, Tongxu ^{[2
]}

机构：

[1] Southeast Univ, Sch Architecture, 2 Sipailou, Nanjing 210096, Peoples R China

[2] Mondelez Foods Suzhou Co Ltd, Suzhou, Peoples R China

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2023年 / 30卷 / 21期

关键词：

Viscoelastic material; anelastic displacement fields model; constrained layer damping; finite element; sound transmission loss; FREE-VIBRATION ANALYSIS; UNIFIED FORMULATION; MULTILAYERED PLATES; DAMPING MATERIALS; COMPOSITE; NOISE; IDENTIFICATION; BEHAVIOR;

D O I：

10.1080/15376494.2022.2095064

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article presents a quasi-3D layer-wise finite element approach to investigate the vibroacoustic characteristics of finite constrained layer damping (CLD) plates with a viscoelastic material (VEM) core. The frequency-dependent properties of the VEM core are integrated into the kinematic governing equation. The sound transmission loss (STL) behavior under oblique plane sound wave excitation is studied in narrow frequency bands, thus the variation caused by resonance modes can be captured clearly. Results show that the STL values of the two CLD plates configurations are significantly increased in resonance frequency regions. The symmetric configuration is found to have better sound insulation performance.

引用

页码：4419 / 4429

页数：11

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