A Rational Basis for Determining Vibration Signature of Shaft/Coupling Misalignment in Rotating Machinery

Bai, Changrui; Ganeriwala, Surendra N.; Sawalhi, Nader

doi:10.1007/978-3-319-74693-7_20

Cited by 9 publications

(4 citation statements)

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“…The continuous wavelet transform (CWT) has been used to extract the silent features from the time response of the rotor system by Prabhakar [37]. Ganeriwala et al [38,39] conducted a series of tests on a Machinery Fault Simulator (MFS) to determine a unique vibration signature of a shaft with coupling misalignment. The researchers concluded that a stiffer coupling always results in a higher vibration level and the coupling geometry plays a very important role.…”

Section: Diagnostic Analysis and Experimental Investigationmentioning

confidence: 99%

Vibration characteristics of a rotor-bearing system caused due to coupling misalignment – a review

Kumar¹,

Sathujoda²,

Ranjan³

2021

Vib. proced.

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In this paper, the authors presented various insights into theoretical and experimental analysis carried out in past, to understand the vibration characteristics of a misaligned rotor-bearing system. The literature presented by various researchers was reviewed methodically. Firstly, the literature review based on theoretical vibration analysis of misaligned rotor system with emphasis on finite element method has been presented. Secondly, various vibration-based analysis methods and the description of experimental measurement techniques have been discussed in detail. Apart from the above, distinct tools used for the detection of fault analysis of the rotor system is also reviewed systematically, which may be useful for preventive maintenance of the rotating machinery used in several industries.

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Section: Diagnostic Analysis and Experimental Investigationmentioning

confidence: 99%

Vibration characteristics of a rotor-bearing system caused due to coupling misalignment – a review

Kumar¹,

Sathujoda²,

Ranjan³

2021

Vib. proced.

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“…It is widely used to control the quality of manufacturing of individual components and finished products, as well as to monitor their conditions during operation. Many studies are devoted to assessing the state of bearing units and gears based on the analysis of their noise and vibrations [18][19][20][21] and the state of various rotary mechanisms [22][23][24][25][26]. Wireless information transmission systems are increasingly being used to control the vibrations of rotating components [24].…”

Section: Introductionmentioning

confidence: 99%

Features of Changes in the Parameters of Acoustic Signals Characteristic of Various Metalworking Processes and Prospects for Their Use in Monitoring

Grigoriev,

Kozochkin,

Porvatov

et al. 2023

Applied Sciences

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The need to create monitoring systems to equip the technological machinery of automated production determines the relevance of searching for parameters of acoustic signals that carry information about the course of treatment processes. The study of acoustic signals in various types of material processing allowed the identification of general features of changes in their spectral composition associated with variations in the power density of energy impact on processed material. The results of experimental work on various technological equipment, including blade processing and processing with concentrated energy flows, are presented in this work. It is shown that changes in the quality of processing in the form of increased tool wear, the concentration of erosion products during WEDM (wire electrical discharge machining), focal plane displacement during laser processing, etc., lead to a natural change in the ratio of acoustic signal amplitudes in the low frequency and high frequency ranges. This property can be used in monitoring systems for automatic equipment.

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“…18–23 Moreover, the main goals are to improve the reliability, 24–26 safety, 27–29 availability, 30,31 efficiency, 32,33 and to reduce the maintenance costs 34,35 as well as to avoid a breakdown or sudden failures. 36,37 In modern industrial applications, 38,39 rotating machinery (RM) 40–42 becomes the most important equipment. RM has been widely used in many vital industrial areas, 43,44 which include blowers, expanders, engines, pumps, turbines, motors, and generators.…”

Section: Introductionmentioning

confidence: 99%

Sounds and acoustic emission-based early fault diagnosis of induction motor: A review study

AlShorman

Alkahatni

Masadeh

et al. 2021

Advances in Mechanical Engineering

131

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Nowadays, condition-based maintenance (CBM) and fault diagnosis (FD) of rotating machinery (RM) has a vital role in the modern industrial world. However, the remaining useful life (RUL) of machinery is crucial for continuous monitoring and timely maintenance. Moreover, reduced maintenance costs, enhanced safety, efficiency, reliability, and availability are the main important industrial issues to maintain valuable and high-cost machinery. Undoubtedly, induction motor (IM) is considered to be a pivotal component in industrial machines. Recently, acoustic emission (AE) becomes a very accurate and efficient method for fault, leaks and fatigue detection and monitoring techniques. Moreover, CM and FD based on the AE of IM have been growing over recent years. The proposed research study aims to review condition monitoring (CM) and fault diagnosis (FD) studies based on sound and AE for four types of faults: bearings, rotor, stator, and compound. The study also points out the advantages and limitations of using sound and AE analysis in CM and FD. Existing public datasets for AE based analysis for CM and FD of IM are also mentioned. Finally, challenges facing AE based CM and FD for RM, especially for IM, and possible future works are addressed in this study.

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A Rational Basis for Determining Vibration Signature of Shaft/Coupling Misalignment in Rotating Machinery

Cited by 9 publications

References 0 publications

Vibration characteristics of a rotor-bearing system caused due to coupling misalignment – a review

Vibration characteristics of a rotor-bearing system caused due to coupling misalignment – a review

Features of Changes in the Parameters of Acoustic Signals Characteristic of Various Metalworking Processes and Prospects for Their Use in Monitoring

Sounds and acoustic emission-based early fault diagnosis of induction motor: A review study

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