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Detection of Cavitation Phenomenon within a Centrifugal Pump Based on Vibration Analysis Technique in both Time and Frequency Domains

Abstract

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.

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Acknowledgments

The author would like to thank Mustansiriyah University (www.uomustansiriyah.edu.iq) Baghdad – Iraq for its support in the present work. The author also would like to gratefully acknowledge the University of Huddersfield (UK) due to the model geometry and numerical data were carried out when the author was studied his PhD degree in this University.

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Correspondence to Ahmed Ramadhan Al-Obaidi.

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Al-Obaidi, A. Detection of Cavitation Phenomenon within a Centrifugal Pump Based on Vibration Analysis Technique in both Time and Frequency Domains. Exp Tech 44, 329–347 (2020). https://doi.org/10.1007/s40799-020-00362-z

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  • DOI: https://doi.org/10.1007/s40799-020-00362-z

Keywords

  • Centrifugal pump
  • Cavitation
  • Vibration technique
  • Fast Fourier Transform (FFT)