In-plane and out-of-plane free vibration and stability of a curved rod in flow

被引：7
|
作者：
Ni, Qiao [1 ,2 ]
Li, Mingwu [1 ,2 ]
Tang, Min [1 ,2 ]
Wang, Yikuen [1 ,2 ]
Luo, Yangyang [1 ,2 ]
Wang, Lin [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Mech, Wuhan 430074, Peoples R China
[2] Hubei Key Lab Engn Struct Anal & Safety Assessmen, Wuhan 430074, Peoples R China
来源：
JOURNAL OF FLUIDS AND STRUCTURES | 2014年 / 49卷
基金：
中国国家自然科学基金;
关键词：
Curved rod; Fluid-structure interaction; Stability; Generalized slender-body theory; DQM;
D O I：
10.1016/j.jfluidstructs.2014.06.008
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper investigates the free vibration and stability of a curved rod in flow. The equations of the three-dimensional motions of the rod are derived by the Newtonian approach. The differential quadrature method (DQM) is introduced to formulate the discrete forms of the governing equations of the inextensible rod with clamped-clamped supports. Based on numerical calculations, the effects of several system parameters, especially the flow velocity, on the natural frequencies and stability of the system are discussed. Buckling and flutter instability are detected as the flow velocity is varied in a certain range. Moreover, a derivation of the generalized slender-body theory for such a deformable curved rod is given in Appendix A. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：667 / 686
页数：20
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