管内流体脈動による配管振動に関する研究 : 第2報,流体脈動と配管のシェル振動との連成応答解析
管内流体脈動による配管振動に関する研究 : 第2報,流体脈動と配管のシェル振動との連成応答解析
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管道内流体脉动引起的管道振动研究：第二次报告，流体脉动与管壳振动耦合响应分析
DOI：
10.1299/kikaic.53.1363
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
勝久 藤田
中科院分区：
文献类型：
--
作者：
守嗣 田中;勝久 藤田
本文提出了一种考虑流体脉动的管道壳型振动的解析估计方法。分析对象限定为N=0（N为周向波数）的壳体振动模态。将管内流体视为轴对称粘性流动，定义管壁连续性作为管壁振动与流体脉动的耦合条件。利用传递矩阵法在频域中计算耦合系统的响应。将压力脉动和管道振动的估计响应与具有简单配置的模型管道系统中的测量响应进行比较，发现估计的频率频率响应和模态形状与测量数据吻合良好。
An analytical estimation method is described for the shell mode vibration of piping coupled with the pulsation of contained fluid. The object of the analysis is restricted to the N=0 (N denotes circumferential wave number) mode of shell vibration. The contained fluid is considered as an axisymmetric viscous flow, and continuity at pipe wall is defined as the coupling condition between the pipe wall vibration and fluid pulsation. The response of a coupled system is formulated in the frequency domain by means of the transfer matrix method. The estimated responses of pressure pulsation and piping vibration are compared with measured responses in a model piping system having a simple configuration, and it is found that the estimated frequency frequency response and mode shapes agree well with the measured data.