Cavitation detection of a centrifugal pump using instantaneous angular speed

S. Al-Hashmi, F. Gu, Y. Li, A. D. Bail, Tao Fen, Ke Lui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 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 cavitaion 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 cavitaion. A secondary detection feature is also defined in the high frequency range. This makes the detection results more reliable.

LanguageEnglish
Title of host publicationASME 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages185-190
Number of pages6
Volume3
ISBN (Print) 0791841758, 9780791841730
DOIs
Publication statusPublished - 2004
Externally publishedYes
Event7th Biennial Conference on Engineering Systems Design and Analysis - Manchester, United Kingdom
Duration: 19 Jul 200422 Jul 2004
Conference number: 7

Conference

Conference7th Biennial Conference on Engineering Systems Design and Analysis
CountryUnited Kingdom
CityManchester
Period19/07/0422/07/04

Fingerprint

Centrifugal pumps
Cavitation
Pumps
Monitoring
Spectrum analysis
Deterioration
Pollution
Hydraulics

Cite this

Al-Hashmi, S., Gu, F., Li, Y., Bail, A. D., Fen, T., & Lui, K. (2004). Cavitation detection of a centrifugal pump using instantaneous angular speed. In ASME 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004 (Vol. 3, pp. 185-190). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/ESDA2004-58255
Al-Hashmi, S. ; Gu, F. ; Li, Y. ; Bail, A. D. ; Fen, Tao ; Lui, Ke. / Cavitation detection of a centrifugal pump using instantaneous angular speed. ASME 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. Vol. 3 American Society of Mechanical Engineers (ASME), 2004. pp. 185-190
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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 cavitaion 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 cavitaion. A secondary detection feature is also defined in the high frequency range. This makes the detection results more reliable.",
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Al-Hashmi, S, Gu, F, Li, Y, Bail, AD, Fen, T & Lui, K 2004, Cavitation detection of a centrifugal pump using instantaneous angular speed. in ASME 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. vol. 3, American Society of Mechanical Engineers (ASME), pp. 185-190, 7th Biennial Conference on Engineering Systems Design and Analysis, Manchester, United Kingdom, 19/07/04. https://doi.org/10.1115/ESDA2004-58255

Cavitation detection of a centrifugal pump using instantaneous angular speed. / Al-Hashmi, S.; Gu, F.; Li, Y.; Bail, A. D.; Fen, Tao; Lui, Ke.

ASME 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. Vol. 3 American Society of Mechanical Engineers (ASME), 2004. p. 185-190.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - 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 cavitaion 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 cavitaion. A secondary detection feature is also defined in the high frequency range. This makes the detection results more reliable.

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Al-Hashmi S, Gu F, Li Y, Bail AD, Fen T, Lui K. Cavitation detection of a centrifugal pump using instantaneous angular speed. In ASME 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. Vol. 3. American Society of Mechanical Engineers (ASME). 2004. p. 185-190 https://doi.org/10.1115/ESDA2004-58255