船舶充液管路振动响应计算与试验

Vibration Response Prediction and Experiment of Ship Liquid Piping System

基于充液管路振动方程,采用理论解析与试验测试结果相结合的方法,建立管路系统各部件阻抗传递矩阵,对管路系统振动响应进行计算,并搭建管路系统振动试验验证平台。仿真与试验结果表明:阻抗理论预测与商用软件计算、试验测试的结果均具有较好的吻合度,采用该计算方法进行充液管路振动响应计算具有较高的精确性,尤其在中高频范围内用于工程预测和估算具有一定的应用价值。

Vibration and noise of liquid filled pipeline is an important part of the noise of ship mechanical system.The vibration prediction of pipe is an important basis for ship acoustic design.Based on the vibration equations of the liquid pipe,the impedance matrix of components in the pipeline system is established by combing the theoretical analysis with the test result.Experiments results are carried out to verify the calculation method.The contrast results show:The results of this paper are in good agreement with both simulation results and test results.The calculation method of this paper has high accuracy and engineering application value in middle-high frequency range.