空间管路振动频率计算的精确传递矩阵法

Accurate transfer matrix method of frequency calculation of spatial pipeline system

考虑了流体定常压力和流速 ,建立了空间管系振动及声传播的传递矩阵法。该方法可计算空间管系的频率、模态及动力响应。用该方法对典型耐压管路频率计算与解析解对比表明该方法是正确的。

In this paper the transfer matrix method of sound and vibration propagation of the spatial pipeline system is deduced, while the steady flow speed and steady liquid pressure are considered. The numerical model can be used to calculate frequency, mode shape and dynamic responses of pipeline system. The frequency calculating of typical pipeline system showed that TMM is accurate.