摘要
考虑流固耦合作用,建立同时考虑轴向、横向、扭转振动的充液弯管传递矩阵。对一"U"形充液管道进行研究,分别使用传递矩阵法和ANSYS软件计算模态频率和振型。结果说明,传递矩阵法可以有效的对充液弯管进行模态分析,且流固耦合作用会降低管系固有频率,影响不可忽略。
The transfer matrices of the axial, flexible and torsional modes of fluid-conveying elbow pipe are deduced considering fluid-structure interaction between pipe and fluid. Calculate the modal frequency and shape of a ＂U＂ shape pipe with Transfer Matrix Method and ANSYS software respectively. The results indicate that Transfer Matrix Method is an effective way to analyze fluid-conveying pipe. The effect of fluid-structure interaction can not be ignored which will depress the modal frequency of the pipe.
出处
《噪声与振动控制》
CSCD
北大核心
2009年第6期30-33,共4页
Noise and Vibration Control
基金
国防科工委科研项目"大型液化天然气船工程开发科研项目"
关键词
振动与波
充液弯管
传递矩阵法
模态分析
流固耦合
vibration and wave
fluid-conveying pipe
transfer matrix
modal analysis
fluid-structure interaction
