孙霖,谢江辉,尚进,张德满
SUN Lin,XIE Jiang-hui,SHANG Jin,ZHANG De-man

• 1:海军驻研究所军事代表室
• 2:武汉第二船舶设计研究所

摘要(Abstract)：

为了较为系统地理解变频循环泵的振动噪声特性,以一台比转速为200和最高转速为5600r/min的变频循环泵为研究对象,在背景噪声小于16dB的半消音室和固有频率小于10Hz的振动试验台的试验条件下,对不同流量和转速下的船用循环泵振动噪声特性进行深入的试验研究。试验结果表明:循环泵的总体噪声水平低于66 dB(A),水力诱导的空气传递噪声小于3dB(A);噪声的主要激励频率为工频及谐波,总体结构振动烈度低于1.1mm/s,振动烈度与转速具有良好线性函数关系;结构振动烈度的大小排序为电机、法兰、电机座和泵体.
To understand the noise and vibration characteristics of variable speed circulator pump,a circulator pump with specific speed of 200 and maximum speed of 5600 r /min is selected as study object. The noise and vibration characteristics of circulator pump under different flow rates and speeds conditions are deeply investigated in the condition of hemi-anechoic room with background noise level lower than 16 dB and vibration test bed with natural frequency lower than 10 Hz. Experimental results show that overall noise level is lower than 66dB( A) and has a good linear function with speed; air-borne noise level generated by fluid is lower than 3dB( A). Working frequency and its harmonics are the main contributors for the noise. Overall structural vibration level is lower than 1. 1mm /s and has a good linear function with speed. The sort of amplitude of structural vibration is motor,flanges,motor stool and pump casing.

关键词(KeyWords)： 船用循环泵;振动噪声;试验研究;半消音室
circulator pump;vibration and noise;experimental study;hemi-anechoic room

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 孙霖,谢江辉,尚进,张德满
SUN Lin,XIE Jiang-hui,SHANG Jin,ZHANG De-man

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