Free vibration of polar orthotropic circular plates with elastic growth stresses and drying stresses

被引：4
|
作者：
Kang, Wook [1 ]
Lee, Narn-Ho [2 ]
Pang, Shusheng [3 ]
Chung, Woo Yang [1 ]
机构：
[1] Chonnam Natl Univ, Dept Wood Sci & Engn, Coll Agr & Life Sci, Kwangju 500757, South Korea
[2] Chonbuk Natl Univ, Coll Agr, Dept Forest Prod, Chonju 541756, Chonbuk, South Korea
[3] Univ Canterbury, Dept Chem & Proc Engn, Christchurch 4800, New Zealand
来源：
APPLIED ACOUSTICS | 2008年 / 69卷 / 11期
关键词：
free vibration; tree disk; growth stress; drying stress;
D O I：
10.1016/j.apacoust.2007.07.010
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This study was performed to analyze effect of transverse growth stresses and drying stresses on natural frequencies of transverse free vibration of thin tree disk with free boundary condition. Using Rayleigh-Ritz method and finite element method, explicit closed form expression was derived for homogeneous orthotropic circular plates with internal stresses, which enables to predict both the effects of growth stresses, drying stresses, and combined growth and drying stresses on the natural frequency changes. This model can be used for predicting growth stresses from known natural frequencies. The same approach can also be undertaken to validate models visco-elastic drying stresses. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：985 / 993
页数：9
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