管材参数对输液管流固耦合振动的影响

杨超;范士娟

振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 210-213.

PDF(1354 KB)
PDF(1354 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 210-213.
论文

管材参数对输液管流固耦合振动的影响

  • 杨超; 范士娟
作者信息 +

Influence of Pipe Parameters on Fluid-structure Coupling Vibration of Fluid-conveying Pipe

  • YANG Chao, FAN Shi-juan
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文章历史 +

摘要

采用特征线法对一蓄水池-管道-阀门(RPV)系统的流固耦合振动响应进行了数值计算,研究了管道结构阻尼、管材泊松比以及管道壁厚管道材料对系统振动响应的影响。结果表明:随着管道结构阻尼的增大,管壁本身的振动受到抑制;当管道结构阻尼大于某一临界值时,系统的振动能量主要集中在液体里,造成液体压力能的升高;随着泊松比的增大或管道壁厚的增大,液体的压能增大,管壁的轴向振动强度降低。

Abstract

Numerical calculation on fluid-structure coupling vibration responses of a reservoir-pipe-valve (RPV) system was carried out by the method of characteristics (MOC), the influences of pipe structure-damping, pipe Poisson’s Ratio and pipe wall thickness on vibration responses of the RPV system were studied. The numerical results show that the axial vibration energy of pipe wall is weakened with the increase of pipe wall damping, when pipe wall damping is greater a certain value, the vibration energy of the system mostly concentrates on fluid which enhances fluid pressure energy; pressure energy of fluid is enhanced meanwhile the axial vibration energy of pipe wall is weakened with the increase of pipe wall Poisson’s Ratio or pipe wall thickness.

关键词

输液管道 / 流固耦合振动 / 管道参数 / 特征线法 / 数值计算

Key words

Fluid-conveying pipe / fluid-structure coupling vibration / pipe parameter / method of characteristics / numerical calculation

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导出引用
杨超;范士娟. 管材参数对输液管流固耦合振动的影响[J]. 振动与冲击, 2011, 30(7): 210-213
YANG Chao;FAN Shi-juan. Influence of Pipe Parameters on Fluid-structure Coupling Vibration of Fluid-conveying Pipe[J]. Journal of Vibration and Shock, 2011, 30(7): 210-213

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