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

共 19 条

[11] IDENTIFICATION OF CRACKS IN WELDED-JOINTS OF COMPLEX STRUCTURES [J].

CHONDROS, TG ;

DIMAROGONAS, AD .

JOURNAL OF SOUND AND VIBRATION, 1980, 69 (04) :531-538

[12]

Dimargonas A, 1983, ANAL METHODS ROTOR D

[13]

DIMARGONAS AD, 1976, VIBRATION ENG

[14]

KRUPKA RM, 1969, ASME, V91, P1017

[15]

Leipholz H., 1980, STABILITY ELASTIC SY

[16]

Okamura H, 1969, ENG FRACT MECH, V1, P547, DOI 10.1016/0013-7944(69)90011-3

[17] PART-THROUGH SURFACE CRACK IN AN ELASTIC PLATE [J].

RICE, JR ;

LEVY, N .

JOURNAL OF APPLIED MECHANICS, 1972, 39 (01) :185-+

[18] SEMI-ANALYTIC METHODS FOR ROTATING TIMOSHENKO BEAMS [J].

STAFFORD, RO ;

GIURGIUTIU, V .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 1975, 17 (11-1) :719-727

[19] FINITE-ELEMENT MODEL FOR DYNAMIC ANALYSIS OF TIMOSHENKO BEAM [J].

THOMAS, J ;

ABBAS, BAH .

JOURNAL OF SOUND AND VIBRATION, 1975, 41 (03) :291-299

← 1 2 →