Experimental novel investigation of diagnostics cavitation in axial pump using vibration and acoustic measurements based on CWT and FFT analyses approaches

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-04-24 DOI:10.1016/j.apacoust.2025.110758

Ahmed Ramadhan Al-Obaidi

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引用次数: 0

Abstract

The paper presents the findings of tests to predict the start of cavitation using a variety of statistical factors generated from: the acoustic signal from a microphone near the pump outlet, and the vibration signal received from an accelerometer on the pump casing. Based on a thorough examination of a variety of statistical metrics from time and frequency and domain analysis of the signals based on FFT and CWT investigations, an evaluation of the relative benefits of the various techniques for the detection of incipient cavitation is provided. This study brings some significant new contributions to the field of condition monitoring in general and cavitation monitoring in the pump specifically, while also consolidating and validating the majority of earlier work on the subject. These contributions include the use both vibration signature analysis and acoustics for the diagnosis and detection of cavitation in pumps. The contributions also consider the use of the low frequency vibration and acoustics spectrum (10 to 2000 Hz) for cavitation monitoring in pumps.

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.