Cavitation Detection of a Centrifugal Pump Using Instantaneous Angular Speed

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

doi:10.1115/ESDA2004-58255

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 proceeding › Conference contribution

14 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 language	English
Title of host publication	Unknown Host Publication
Publisher	American Society of Mechanical Engineers
Pages	185-190
Number of pages	6
Volume	3
DOIs	https://doi.org/10.1115/ESDA2004-58255
Publication status	Published - 2004
Event	ASME 7th Biennial Conference on Engineering Systems Design and Analysis - Manchester, UK Duration: 1 Jan 2004 → …

Conference

Conference	ASME 7th Biennial Conference on Engineering Systems Design and Analysis
Period	1/01/04 → …

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Al-Hashmi, S., Gu, F., Li, Y., Ball, A., Fen, T., & Liu, K. (2004). Cavitation Detection of a Centrifugal Pump Using Instantaneous Angular Speed. In Unknown Host Publication (Vol. 3, pp. 185-190). American Society of Mechanical Engineers. https://doi.org/10.1115/ESDA2004-58255

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title = "Cavitation Detection of a Centrifugal Pump Using Instantaneous Angular Speed",

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.",

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

year = "2004",

doi = "10.1115/ESDA2004-58255",

language = "English",

volume = "3",

pages = "185--190",

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note = "ASME 7th Biennial Conference on Engineering Systems Design and Analysis ; Conference date: 01-01-2004",

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T1 - Cavitation Detection of a Centrifugal Pump Using Instantaneous Angular Speed

AU - Al-Hashmi, S.

AU - Gu, Fengshou

AU - Li, Yuhua

AU - Ball, Andrew

AU - Fen, Tao

AU - Liu, Ke

PY - 2004

Y1 - 2004

N2 - 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.

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 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.

U2 - 10.1115/ESDA2004-58255

DO - 10.1115/ESDA2004-58255

M3 - Conference contribution

VL - 3

SP - 185

EP - 190

BT - Unknown Host Publication

PB - American Society of Mechanical Engineers

T2 - ASME 7th Biennial Conference on Engineering Systems Design and Analysis

Y2 - 1 January 2004

ER -