输液管道流固耦合非线性动力稳定分析

张立翔; 黄文虎

输液管道流固耦合非线性动力稳定分析

张立翔¹,
黄文虎²

1.
昆明理工大学, 工程力学系, 昆明, 650051;
2.
哈尔滨工业大学, 航天学院, 哈尔滨, 150001

基金项目: 国家自然科学基金资助项目(50079007);水利部重点水利科技资助项目(SZ9830);云南省自然科学基金资助项目(97E003G)

详细信息

作者简介:
张立翔(1959- ),男,云南石屏人,教授,博士,博士生导师(E-mail:zhanglx@public.km.yn.cn);黄文虎(1926),男,教授,中国工程院院士.

中图分类号: VO353.1;U137
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出版历程
- 收稿日期: 2000-11-22
- 修回日期: 2002-05-28
- 刊出日期: 2002-09-15

Analysis of Nonlinear Dynamic Stability of Liquid-Conveying Pipes

ZHANG Li-xiang¹,
HUANG Wen-hu²

1.
Department of Engineering Mechanics, Kunming University of Science and Technology, Kunming 650051, P. R. China;
2.
School of Aeronautics, Harbin Institute of Technology, Harbin 150001, P. R. China

摘要

摘要: 将弱约束输流管道非定常流液固耦合运动按波-流-振动系统建模成由4个非线性微分方程组成的分析模型,按模态进行分解研究系统在多种耦合状态下具有的运动稳定特性.以悬臂梁管道为例分析了耦合系统奇点的属性,得到了前四阶模态运动的相图.结果说明,多种耦合条件下输流管道的稳定性变得更为复杂,各阶模态运动具有不同的稳定特性.
- 管道流 /
- 流固耦合 /
- 非线性振动 /
- 分岔
Abstract: Nonlinearly dynamic stability of flexible liquid-conveying pipe in fluid structure interaction was analyzed by using modal disassembling technique. The effect of Poisson, Junction and Friction couplings in the wave-flowing-vibration system on the pipe dynamic stability were included in the analytical model constituted by 4 nonlinear differential equations. An analyzing example of cantilevered pipe was done to illustrate the dynamic stability characteristics of the pipe in the full coupling mechanisms, and the phase curves related to the first four modal motions were drawn. The results show that the dynamic stable characteristics of the pipe are very complicated in the complete coupling mechanisms, and the kinds of the singularity points corresponding to the various modal motions are different.
- piping flow /
- fluid structure interaction /
- nonlinear vibration /
- bifurcation

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参考文献(20)

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输液管道流固耦合非线性动力稳定分析

作者简介:
张立翔(1959- ),男,云南石屏人,教授,博士,博士生导师(E-mail:zhanglx@public.km.yn.cn);黄文虎(1926),男,教授,中国工程院院士.

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Analysis of Nonlinear Dynamic Stability of Liquid-Conveying Pipes

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输液管道流固耦合非线性动力稳定分析

作者简介: 张立翔(1959- ),男,云南石屏人,教授,博士,博士生导师(E-mail:zhanglx@public.km.yn.cn);黄文虎(1926),男,教授,中国工程院院士.

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出版历程

Analysis of Nonlinear Dynamic Stability of Liquid-Conveying Pipes

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出版历程

目录

作者简介:
张立翔(1959- ),男,云南石屏人,教授,博士,博士生导师(E-mail:zhanglx@public.km.yn.cn);黄文虎(1926),男,教授,中国工程院院士.