基于锤击法的离心泵固有频率的测定  

The Test of the Natural Frequency of the Centrifugal Pump Based on Hammering Method

作　　者：袁小慧[1] 归文强 

机构地区：[1]西安航空学院车辆工程学院,陕西西安710077

出　　处：《佳木斯大学学报（自然科学版）》2017年第2期267-269,共3页Journal of Jiamusi University：Natural Science Edition

摘　　要：在机械工程中振动是很普遍的现象,分析构件的固有频率可以避免该构件在使用过程中出现共振现象,减少振动对其产生的影响。本文使用锤击法中的单点拾振法得到某工程上的离心泵X、Y、Z三个方向上的固有频率,并对比该离心泵的工作频率范围,该范围覆盖离心泵的第一阶和第二阶固有频率,因此,该离心泵在工作过程中会偶尔出现振幅大、噪声大的现象。Vibration is a common phenomenon in mechanical engineering, and taking analysis of the natural frequencies of component can avoid the resonance phenomenon when using, which will reduce the influence to the system. This paper used MISO of the hammering method to get the natural frequencies of a centrifugal pump in the X, Y, Z directions, the first and second order natural and compared the frequency range of the centrifugal pump. This range covers frequencies of the centrifugal pump. Therefore, the high amplitude and large noise occasionally happen on this centrifugal pump when running.

关 键 词：离心泵 固有频率 锤击法 共振 

分 类 号：U467.3[机械工程—车辆工程]