Free vibration analysis of rotating FGP sandwich cylindrical shells with metal-foam core layer

被引：31

作者：

Nguyen, Van-Loi ^{[1
,2
]}

Tran, Minh-Tu ^{[2
]}

Limkatanyu, Suchart ^{[3
]}

Rungamornrat, Jaroon ^{[1
]}

机构：

[1] Chulalongkorn Univ, Fac Engn, Ctr Excellence Appl Mech & Struct, Dept Civil Engn, Bangkok, Thailand

[2] Hanoi Univ Civil Engn, Dept Strength Mat, Hanoi, Vietnam

[3] Prince Songkla Univ, Fac Engn, Dept Civil Engn, Hat Yai, Thailand

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2023年 / 30卷 / 16期

关键词：

Free vibration; rotating cylindrical shell; FGP sandwich; first-order shear deformation shell theory; Rayleigh-Ritz method; different boundary conditions; SHEAR DEFORMATION-THEORY; HIGHER-ORDER THEORY; NATURAL FREQUENCIES; BOUNDARY-CONDITIONS; ELASTIC-FOUNDATION; THICK; PLATES; RITZ;

D O I：

10.1080/15376494.2022.2073410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study offers a unique solution for the free vibration of rotating FGP sandwich cylindrical shells under different boundary conditions. A new type of sandwich structures with a metal-foam core and two coating FGM layers is investigated. Equations of motion governing the free vibration of rotating shells are derived by the first-order, shear-deformation shell theory. Single-term modal functions are introduced in Rayleigh-Ritz method to efficiently determine natural frequencies of the shell. After result validations, the influence of volume fraction index, distribution schemes, core-layer thickness, porosity coefficient, rotating velocity, geometrical parameters, and boundary conditions on the shell natural frequencies are studied.

引用

页码：3318 / 3331

页数：14

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