单级离心泵叶轮在干式状态下的模态分析及试验研究  

A Modal Analysis and Experimental Study of Single Stage Centrifugal Pump Impeller in a Dry State

作　　者：王学谦[1] 黄思[1] 张雪娇[1] 邱光琦[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510640

出　　处：《中国农村水利水电》2017年第11期185-188,193,共5页China Rural Water and Hydropower

摘　　要：叶轮等动力机械部件在外部激励或自身动力作用下较易发生振动,为避免造成疲劳损伤或结构破坏等不良后果,深入分析其振动特性尤为重要。以干式状态下的XA100/32型单级离心泵叶轮为研究对象,有机地结合ANSYS Workbench协同仿真平台、德国BBM振动测试分析系统和LMS Test.lab实验模态分析软件进行了仿真模态和试验模态分析,分别得到该叶轮自由状态下前六阶固有频率和振型,两种方法的固有频率相对误差基本在10%以内。Power mechanical components such as impellers vibrate more easily under external excitation or self power. To avoid harmful consequences such as fatigue damage and structural damage, it is important to analyze its vibration characteristics deeply. In this paper, the impeller of XA100/32 single stage centrifugal pump in a dry state is taken as the object of study, organically combining ANSYS Workbench collaborative simulation platform, the Germany BBM vibration test and analysis system and the LMS Test.lab experimental modal analysis software. The first six natural frequencies and vibration modes of the impeller are obtained by simulation and modal analysis respectively. The relative error of the inherent frequency of the two methods is basically less than 10%.

关 键 词：离心泵叶轮 振动特性 仿真模态分析 试验模态分析 

分 类 号：TV675[水利工程—水利水电工程] TH311[机械工程—机械制造及自动化]