一种船舶液体管路系统振动频域响应预报方法

摘要

船舶管路系统由于其复杂性而难于进行整体的振动响应预报。文章提出了一种针对船舶液体管路系统的振动频域响应预报方法。该方法包含参数获取和理论计算两个部分。文中着重论述了采用阻抗-导纳综合法的理论计算部分。该方法用基于导纳矩阵的有源双端口模型描述泵、阀的振动噪声源特性，而用阻抗矩阵描述其它管路元件，兼顾了源数据获取的可行性、响应求解的精确性和应用的便利性，具有较高的工程应用价值。%It is hard to conduct full vibration prediction for piping systems in vessels because of its com-plexity. A vibration prediction method in frequency domain is presented for liquid filled marine piping. This method comprises input data getting and computing. Focussing on the later, the impedance-mobility syn-thesize method is adopted. This method characterizes the vibration and acoustic sources utilizing the two port model with source, and describes other components with impedance matrices. It takes the feasibility of the source data acquisition, accuracy of the resolution and convenience of the application into account, and is proved to be worthful for engeering application.