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对于液体 (润滑油、水 )泵的管流噪声 ,针对一齿轮泵和叶片泵的出口流动噪声设计了扩张管 ,并进行了试验测试。结果表明 ,对于泵的额定工况 ,所采用的方法可达到管壁振动加速度降低 6-1 0分贝。
For pipe flow noise of liquid (lube, water) pumps, dilators were designed for outlet flow noise of a gear pump and vane pump and tested. The results show that, for the pump rated conditions, the method used to achieve the wall vibration acceleration reduced by 6-1 0 dB.