NDLI: Cavitation Detection of a Centrifugal Pump Using Noise Spectrum

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Chini, Seyed Farshid Rahimzadeh, Hassan Bahrami, Mohsen
Copyright Year	2005
Abstract	Cavitation is a common fault in centrifugal pumps. The detection and diagnosis of the onset and severity of the cavitation provide the means for preventing harmful effects such as deterioration of the hydraulic performance, damage to pump components, vibration and noise pollution. This paper presents a new approach for monitoring cavitation based on the noise measurement spectrum and analysis. Noise is measured using a microphone and a P.C. equipped with soundcard and Matlab6.1 uses Fast Fourier Transform to change the domain from time to frequency. It has been found that the sound pressure level at some frequencies can be used as a primary monitoring feature to detect the onset of the cavitation and to quantify the severity of the cavitation. One of these frequencies is related to the number of blades. Other detection features are defined in other frequencies, as well. Flow rate increase was used to have stronger cavitation effect.
Sponsorship	Design Engineering Division and Computers and Information in Engineering Division
Starting Page	13
Ending Page	19
Page Count	7
File Format	PDF
ISBN	0791847381
DOI	10.1115/DETC2005-84363
e-ISBN	0791837661
Volume Number	Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C
Conference Proceedings	ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2005-09-24
Publisher Place	Long Beach, California, USA
Access Restriction	Subscribed
Subject Keyword	Condition monitoring Centrifugal pump Noise spectrum Cavitation detection Noise (sound) Cavitation Centrifugal pumps
Content Type	Text
Resource Type	Article

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