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Multi-fault coupling study of a rotor system in experimental and numerical analyses

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0 Published in 2019 at "Nonlinear Dynamics"

DOI: 10.1007/s11071-019-05151-x

Abstract: Multi-fault rotor system is a hot spot in the study of rotor dynamics and fault diagnosis. The present study is aimed to deal with the vibration response and nonlinear behavior of a cracked rotor system… read more here.

Keywords: rotor; system; study; rotor system ... See more keywords

Demodulation spectrum analysis for multi-fault diagnosis of rolling bearing via chirplet path pursuit

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0 Published in 2019 at "Journal of Central South University"

DOI: 10.1007/s11771-019-4184-6

Abstract: The vibration signals of multi-fault rolling bearings under nonstationary conditions are characterized by intricate modulation features, making it difficult to identify the fault characteristic frequency. To remove the time-varying behavior caused by speed fluctuation, the… read more here.

Keywords: demodulation spectrum; via chirplet; path pursuit; multi fault ... See more keywords

Multi-objective iterative optimization algorithm based optimal wavelet filter selection for multi-fault diagnosis of rolling element bearings.

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0 Published in 2019 at "ISA transactions"

DOI: 10.1016/j.isatra.2018.12.010

Abstract: Rolling element bearings (REBs) play an essential role in modern machinery and their condition monitoring is significant in predictive maintenance. Due to the harsh operating conditions, multi-fault may co-exist in one bearing and vibration signal… read more here.

Keywords: rolling element; fault; optimization algorithm; multi fault ... See more keywords

A multi-fault diagnostic method based on an interleaved voltage measurement topology for series connected battery packs

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0 Published in 2019 at "Journal of Power Sources"

DOI: 10.1016/j.jpowsour.2019.01.058

Abstract: Abstract For the safe operation of electric vehicles, it is of critical importance to quickly detect and accurately identify different types of faults in battery packs. However, the performance characteristics of many faults in the… read more here.

Keywords: method; fault diagnostic; battery; topology ... See more keywords

A new autocorrelation-based strategy for multiple fault feature extraction from gearbox vibration signals

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0 Published in 2020 at "Measurement"

DOI: 10.1016/j.measurement.2020.108738

Abstract: Abstract A gearbox plays a key role in rotating machines, and its fault diagnosis is of great significance to reduce maintenance costs, unnecessary casualties and property losses. However, due to the concurrence of heavy Gaussian… read more here.

Keywords: fault; feature; multi fault; gearbox ... See more keywords