Free flexural vibration of thin-walled honeycomb sandwich cylindrical shells

被引：48

作者：

Li, Yongqiang ^{[1
,2
]}

Yao, Wenkai ^{[1
]}

Wang, Tao ^{[1
]}

机构：

[1] Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Key Lab Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Liaoning, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2020年 / 157卷

基金：

中国国家自然科学基金;

关键词：

Flexural vibration analysis; Honeycomb sandwich cylindrical shells; Flugge's shell theory; Corrected Gibson's formula; Modal test; ACTIVE CONTROL; PANELS; CORE; STRESS; ORDER;

D O I：

10.1016/j.tws.2020.107032

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The free flexural vibration of thin-walled honeycomb sandwich cylindrical shell was investigated by experiments and Flugge's shell theory simulations. The natural frequencies were measured and compared with simulations three-dimensional model. In the simulation analysis, the porous honeycomb core is simplified as a homogeneous orthotropic material, and its equivalent material properties are determined by the corrected Gibson's formula. Flugge's shell theory is compared with experimental results and finite element method calculation results, and the maximum relative error is only 4.749%. The comparison results show that Flugge's shell theory can accurately calculate the natural frequency of the thin honeycomb sandwich cylindrical shell.

引用

页数：15

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