The dynamic stability of a rotating pre-twisted asymmetric cross-section Timoshenko beam subjected to lateral parametric excitation

被引：21
|
作者：
Sabuncu, M [1 ]
Evran, K [1 ]
机构：
[1] Dokuz Eylul Univ, Dept Mech Engn, TR-35100 Izmir, Turkey
来源：
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2006年 / 48卷 / 08期
关键词：
dynamic stability; Timoshenko beam; lateral; rotating; pre-twist; asymmetric;
D O I：
10.1016/j.ijmecsci.2006.01.019
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A finite element model is presented to study the dynamic stability of a pre-twisted Timoshenko beam having asymmetric aerofoil cross-section subjected to lateral parametric excitation. Solutions referred to as combination resonance are investigated. The effects of shear deformation and rotary inertia are included in the analysis. The effects of coupling due to centre of flexure distance from the centroid and the shear coefficient on the stability are considered. The change in these effects due to pre-twist angle is investigated. It is concluded from the results that the pre-twist angle has an influence on the effects of coupling and the shear coefficient. (C) 2006 Elsevier Ltd. All rights reserved.
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页码：878 / 888
页数：11
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