离心泵浮筏隔振系统设计及其效果分析  

Floating Raft Isolation System Design and Effect Analysis for Centrifugal Pump

作　　者：祁伟栋 杨晓一 曹杰 徐尧 QI Weidong;YANG Xiaoyi;CAO Jie;XU Yao(Shanghai Haixun Electrical and Mechanical Engineering Co.,Ltd.,Shanghai 201111,China)

机构地区：[1]上海海迅机电工程有限公司,上海201111

出　　处：《机电设备》2024年第4期44-50,共7页Mechanical and Electrical Equipment

摘　　要：以某船多台离心泵为隔振对象,开展浮筏隔振系统设计,并根据设计方案建立浮筏隔振系统的动力学模型。通过模态分析验证筏架、基座以及浮筏隔振系统的各阶模态频率,可避开离心泵主要扰动频率。基于有限元法和统计能量法,计算浮筏隔振系统在各工况下的隔振效果,并与试验结果进行对比分析。结果表明:理论计算值与实测值较为吻合,验证了设计和计算方法的可行性,可为离心泵浮筏隔振系统设计及其隔振效果的工程预测提供技术支撑。The floating raft vibration isolation system design is carried out for several pumps of certain ship.The floating raft vibration isolation system is established according to the design scheme.It's be verified that the frequency of different orders mode of the raft,the base and the floating raft vibration isolation system avoided the disturbance frequency of the centrifugal pumps by means of mode analysis.Based on the finite element method(FEM)and statistical energy analysis(SEA)method,the vibration-isolation effect of the floating raft vibration isolation system in various working conditions is calculated,and the result is compared with the test result.The results show that the experimental results is consistent with the theoretical calculating value,which proves the feasibility of the design and calculation.It can provide technical support for design of centrifugal pump floating raft vibration isolation system and engineering prediction of vibration-isolation effect.

关 键 词：离心泵 浮筏隔振系统 模态分析 隔振效果 

分 类 号：U661.44[交通运输工程—船舶及航道工程]