Vibratory characteristics of timoshenko beams with arbitrary number of cracks

被引：36

作者：

Li, QS ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Bldg & Construct, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF ENGINEERING MECHANICS-ASCE | 2003年 / 129卷 / 11期

关键词：

natural frequency; beams; cracking;

D O I：

10.1061/(ASCE)0733-9399(2003)129:11(1355)

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 [机械工程];

摘要：

An analytical approach is proposed for determining vibratory characteristics of cracked Timoshenko beams. Based on the rotational spring model for describing the local flexibility induced by a crack and the developed fundamental solutions, the frequency equation for a Timoshenko beam with any kind of two end supports and an arbitrary number of cracks can be established from a second-order determinant. The decrease in the determinant order can lead to significant savings in the computational time.

引用

页码：1355 / 1359

页数：5

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