VIBRATION AND STABILITY OF CRACKED THICK ROTATING BLADES

被引：63

作者：

CHEN, LW

CHEN, CL

机构：

[1] Natl Cheng Kung Univ, Tainan, Taiwan, Natl Cheng Kung Univ, Tainan, Taiwan

来源：

COMPUTERS & STRUCTURES | 1988年 / 28卷 / 01期

关键词：

BEAMS AND GIRDERS - Vibrations - MATERIALS - Crack Propagation - MATHEMATICAL TECHNIQUES - Numerical Methods - STRUCTURAL ANALYSIS - Stability;

D O I：

10.1016/0045-7949(88)90093-4

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A finite element model is applied to the vibration and stability of thick rotating blades with a single edge crack. The effects of transverse shear deformation and rotatory inertia are taken into account. The model can satisfy all the geometric and natural boundary conditions of a thick blade. The stability problems of a cracked rotating blade subjected to non-conservative follower forces are considered. The effects of crack locations and sizes on the dynamic behavior of a blade are studied. It is found that a crack can change the vibrational behavior and stability characteristics of the system.

引用

页码：67 / 74

页数：8

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