Defect detection in deep groove ball bearing in presence of external vibration using envelope analysis and Duffing oscillator

Patel, V. N.; Tandon, N.; Pandey, R.K.

doi:10.1016/j.measurement.2012.01.047

Cited by 94 publications

(52 citation statements)

References 13 publications

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“…As known that the measured vibration signals are inherently nonstationary, the Lyapunov exponent (LE) [34] has been employed to depict the distinct characteristics of the gear vibration before the fault diagnosis processing. LE is able to characterize the degree of chaoticity of a dynamic system.…”

Section: Case Study 1: Gear Fault Diagnosismentioning

confidence: 99%

“…Specifically, if the maximum LE value k max of the time series of the gear vibration is positive (i.e.k max > 0), then the signal has chaotic characteristic. The larger k max is, the more serious the degree of chaoticity of the signal is [34]. The theory background of LE can refer to [34].…”

Section: Case Study 1: Gear Fault Diagnosismentioning

confidence: 99%

“…The larger k max is, the more serious the degree of chaoticity of the signal is [34]. The theory background of LE can refer to [34]. Fig.…”

Section: Case Study 1: Gear Fault Diagnosismentioning

confidence: 99%

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Blind vibration component separation and nonlinear feature extraction applied to the nonstationary vibration signals for the gearbox multi-fault diagnosis

et al. 2013

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Section: Case Study 1: Gear Fault Diagnosismentioning

confidence: 99%

Section: Case Study 1: Gear Fault Diagnosismentioning

confidence: 99%

See 1 more Smart Citation

Blind vibration component separation and nonlinear feature extraction applied to the nonstationary vibration signals for the gearbox multi-fault diagnosis

et al. 2013

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“…The importance of screening and early defect detection is recognised in a number of fields (for example, see Peng et al [39], Ngan et al [40], and Patel et al [41]). However, a detailed evaluation of these contributions is beyond the scope of this study.…”

Section: Screening and Detectionmentioning

confidence: 99%

A Mechanism for the Early Detection and Management of Physical Asset Management Strategy Execution Failure

Stimie

Vlok

2016

SAJIE

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The purpose of this paper is to present a mechanism that can assist physical asset management (PAM) practitioners and academics with the early detection and management of PAM strategy execution failure. In the pursuit of this objective, case studies were applied to develop the theory related to this topic the methodologies involved in the development of theory through case studies was were applied. The paper commences with a brief literature review of the contemporary literature on general business strategy, strategy execution, and, more specifically, PAM strategy execution failure (PAMSEF).The physical asset management strategy execution enforcement mechanism (PAMSEEM) is presented next. Validation of each one of the components of the PAMSEEM takes place within the context of an organisation that is highly dependent on physical assets (PA) dependent organization. The conclusion reached is that the PAMSEEM, can indeed assist organisations with the early detection and management of PAMSEF. OPSOMMINGIn die artikel word 'n meganisme voorgestel wat deur fisiese batebestuur praktisyns sowel as akademici gebruik kan word tydens die vroeë identifikasie en bestuur van fisiese batebestuur strategie uitvoering faling (FBBSUF). In die strewe om hierdie doelwit te bereik word die navorsingsmetodologie wat gebruik word in die skep van teorie deur middel van gevalle studies, toegepas. Die artikel begin met 'n oorsigtelike bespreking van intydse besigheidstrategie en strategie-uitvoerings literatuur en meer spesifiek fisiese batebestuur strategie faling.Die fisiese batebestuur strategie uitvoering afdwingingsmeganisme (FBBSUAM) word hierna voorgestel. Validasie van alle aspekte van die FBBSUAM vind plaas binne 'n organisasie met baie groot investering in fisiese bates. Die gevolgtrekking aan die einde van die studie is dat die FBBSUAM wel organisasies kan help met die vroeë identifikasie en bestuur van FBBSUF.

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“…The Duffing oscillator is comprehensively investigated for many cases like: free vibrations [17,18]; a single harmonic force excitation [17,18,19,20]; a force excitation that contains two harmonics with equal [21] or similar [22] frequencies; an excitation that contains a harmonic force and a noise [23]; and a piece-wise force excitation. In [23], the application of weak signal detection based on chaotic oscillator is studied.…”

Section: Introductionmentioning

confidence: 99%

Analytical and Numerical Investigation on the Duffing Oscilator Subjected to a Polyharmonic Force Excitation

Stoyanov¹

2015

Journal of Theoretical and Applied Mechanics

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Abstract. An analytical solution for a specific case of the forced Duffing oscillator is proposed. The excitation force contains two harmonics with significant difference frequencies. This case corresponds to a presence of a defect in the machinery and is in the art of the machinery vibration diagnostics. The results obtained show an amplitude modulation. Therefore, the presence of an amplitude modulation in the vibration signal may be used as an indicator for a malfunction. Analytical solution derived clarifies how the amplitude modulation occurs. Also, a numerical solution is realized and compared with the analytical one. For this, the Duffing equation is solved numerically and then, the spectrograms of vibrations are obtained through a Discrete-time Fourier Transform.

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Defect detection in deep groove ball bearing in presence of external vibration using envelope analysis and Duffing oscillator

Cited by 94 publications

References 13 publications

Blind vibration component separation and nonlinear feature extraction applied to the nonstationary vibration signals for the gearbox multi-fault diagnosis

Blind vibration component separation and nonlinear feature extraction applied to the nonstationary vibration signals for the gearbox multi-fault diagnosis

A Mechanism for the Early Detection and Management of Physical Asset Management Strategy Execution Failure

Analytical and Numerical Investigation on the Duffing Oscilator Subjected to a Polyharmonic Force Excitation

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