Cavitation is an important problem that occurs in any pump and contributes highly towards the deterioration in the performance of the pump. In industrial applications, it is vital to detect and decrease the effect of cavitation in pumps. In this study therefore, focus is on detecting and diagnosing the cavitation phenomenon within a centrifugal pump using vibration technique. The results obtained for vibration signal in time and frequency domains have been analysed in order to achieve a better understanding regarding detection of cavitation within a pump. The effect of different operating conditions, including various flow rates related to the cavitation have been investigated in this work using different statistical features in time domain analysis (TDA). Moreover, Fast Fourier Transform (FFT) technique for frequency domain analysis (FDA) has also been applied.

中文翻译：

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基于时域和频域振动分析技术的离心泵空化现象检测

汽蚀是任何泵中都会发生的一个重要问题，并且是导致泵性能恶化的重要原因。在工业应用中，检测和减少泵中气蚀的影响至关重要。因此，在本研究中，重点是使用振动技术检测和诊断离心泵内的气穴现象。分析了时域和频域振动信号的结果，以便更好地了解泵内气穴的检测。在这项工作中，使用时域分析 (TDA) 中的不同统计特征，研究了不同操作条件的影响，包括与空化相关的各种流速。而且，