Cavitation Detection of a Centrifugal Pump Using Instantaneous Angular Speed

S. Al-Hashmi, Fengshou Gu, Yuhua Li, Andrew Ball, Tao Fen, Ke Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

21 Citations (Scopus)

Abstract

Cavitation is a common fault in centrifugal pumps. The detection and diagnosis of the onset and severity of the cavitation provide the means of preventing the cavitation from causing harmful effects such as deterioration of the hydraulic performance, damage to pump components and the pollution by vibration and noise. This paper presents a new approach to monitoring cavitation based on the measurement of instantaneous angular speed (IAS) of the pump. IAS is measured using a cheap shaft encoder and processed using order spectrum analysis. It has been found that the normalised amplitude at the third order of the rotational speed can be used as a primary monitoring feature to detect the onset of the cavitation and to quantify the severity of the cavitation. A secondary detection feature is also defined in the high frequency range. This makes the detection results more reliable.
Original languageEnglish
Title of host publicationUnknown Host Publication
PublisherAmerican Society of Mechanical Engineers
Pages185-190
Number of pages6
Volume3
DOIs
Publication statusPublished (in print/issue) - 2004
EventASME 7th Biennial Conference on Engineering Systems Design and Analysis - Manchester, UK
Duration: 1 Jan 2004 → …

Conference

ConferenceASME 7th Biennial Conference on Engineering Systems Design and Analysis
Period1/01/04 → …

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