带管路舱筏隔振系统动力学建模与管路设计方法  

Dynamic Modeling and Design Method of Floating Raft Vibration Isolation Systems with Pipelines

作　　者：雷智洋 陈志刚[1,2] 闫肖杰 LEI Zhiyang;CHEN Zhigang;YAN Xiaojie(China Ship Development and Design Center,Wuhan 430064,China;National Key Laboratory on Ship Vibration and Noise,Wuhan 430064,China)

机构地区：[1]中国舰船研究设计中心,武汉430064 [2]船舶振动噪声重点实验室,武汉430064

出　　处：《噪声与振动控制》2022年第3期30-35,共6页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(51875336)。

摘　　要：针对带复杂管路的舱筏隔振系统,利用基于频响函数子结构综合的建模方法,建立带管路的一般的舱筏隔振系统动力学模型。针对设备管路与舱筏、艇体的连接方式,提出三种不同管路连接方式下的舱筏隔振系统设计方案。通过对方案进行对比分析,建立设备管路的设计准则。结果表明,设备管路最好通过刚性连接对称固定到舱筏上,然后管路再通过弹性连接与艇体连接,这样可以有效地降低艇体振动声辐射。The dynamic model of a general floating raft system with attached pipelines is built based on frequency response function(FRF)and substructure method.According to the connection mode between equipment pipelines,raft and hull,three design schemes of floating raft vibration isolation system with different pipeline connection modes are proposed.Then,the design criteria of the equipment pipes are established through the comparative analysis of the design schemes.The results show that the equipment pipelines should be symmetrically fixed to the floating raft through rigid connections,and then connected to the hull through flexible connections.In this way,the vibration and sound radiation of the hull can be effectively reduced.

关 键 词：振动与波 舱筏隔振系统 管路 振动噪声 频响函数综合 

分 类 号：TB532[理学—物理]