基于流固耦合分析的船舶离心泵转子模态设计

Modal design of ship centrifugal pump rotor based on fluid structure coupling analysis

流固耦合分析是一种将流体动力学和结构动力学相结合的分析方法,在船舶离心泵转子的模态设计中,通过流固耦合分析可以确定泵转子的关键振动模态和频率,评估流体对泵转子振动的影响,识别潜在的振动问题,并针对性地进行结构优化。本文系统介绍船舶离心泵转子流固耦合分析的过程,从流体力学原理、动力学原理等角度,阐述了流固耦合分析算法,通过建立船舶离心泵转子的有限元模型,在分析软件Workbench中进行了转子的流固耦合模态分析,对于改善船舶离心泵转子的设计水平有重要的意义。

Fluid structure coupling analysis is an analysis method that combines fluid dynamics and structural dynamics.In the modal design of ship centrifugal pump rotors,fluid structure coupling analysis can determine the key vibration modes and frequencies of the pump rotor,evaluate the impact of fluid on pump rotor vibration,identify potential vibration problems,and carry out targeted structural optimization.This article systematically introduces the process of fluid structure coupling analysis of ship centrifugal pump rotors,and introduces the fluid structure coupling analysis algorithm from the perspectives of fluid mechanics principles,dynamics principles,etc.By establishing a finite element model of ship centrifugal pump rotors,the fluid structure coupling modal analysis of the rotors is carried out in the analysis software workbench,which is of great significance for improving the design level of ship centrifugal pump rotors.