文档介绍：
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5
,
5
JOURNAL OF ENGINEERING THERMOPHYSICS May, 2013
2013
(
212013)
∼
10 8000 Hz
∼
10 350 Hz
:TH312 :A : 0253–231X(2013)05–0866–04
Experimental Study on Vibration Characteristics of Axial-Flow
Pump Under Different Operating Conditions
LI Zhong YANG Min-Guan ZHANG Nin GAO Bo
(School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China)
Abstract The vibration acceleration at different measuring points of axial-flow pump under different
operating conditions were measured, and then the relationship between root mean square value of
vibration acceleration within specific frequency domain and flow rate of pump were obtained. The
experimental results show that the trends of root mean square value of vibration acceleration within
10∼8000 Hz frequency domain with flow rate is the same as trend of head of pump with flow rate.
With the decrease of flow rate, the changing process of vibration level can be divided into three stages:
low-level stage, rapid increase stage and high-l