以三峡水电站水轮机运行工况为模拟条件进行了混流式水轮机尾水管压力脉动试验研究。
Experimental studies on pressure fluctuation in draft tubes of Francis turbines have bean conducted, simulating operating conditions of the Three Gorges Hydraulic Power Station's turbines.
为精确诊断水轮机尾水管涡带，该文提出一种基于小波包特征熵的神经网络故障诊断新方法。
To diagnose accurately vortex rope in draft tube of hydraulic turbine, this paper presents a new method of fault diagnosis based on wavelet packet and neural network.
混流式水轮机尾水管内螺旋形涡带引起的压力脉动是造成混流式水轮机组振动的主要根源之一，严重威胁机组的安全运行。
For Francis turbines, the pressure pulsation in draft-tubes induced by helical vortex rope is one of the main problems and it would seriously affect the safe operation of the unit.
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