2015
DOI: 10.1177/0954406215593568
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A rolling element bearing fault diagnosis approach based on hierarchical fuzzy entropy and support vector machine

Abstract: Aiming at the non-linear characteristics of bearing vibration signals as well as the complexity of condition-indicating information distribution in the signals, a new rolling element bearing fault diagnosis method based on hierarchical fuzzy entropy and support vector machine is proposed in this paper. By incorporating the advantages of both the concept of fuzzy sets and the hierarchical decomposition of hierarchical entropy, hierarchical fuzzy entropy is developed to extract the fault features from the bearin… Show more

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Cited by 30 publications
(34 citation statements)
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“…Artificial intelligence (AI) techniques, which can effectively analyze a mass of data and automatically provide accurate diagnosis results, has good potential for this. [6][7][8][9] However, the gearbox vibration signals are usually non-linear, non-stationary and noisy. Some conventional AI techniques such as support vector machine (SVM) and back propagation neural network (BPNN) are shallow architectures, which contain no more than one non-linear transformation, do not easily learn the complex non-linear relationships in the data.…”
Section: Introductionmentioning
confidence: 99%
“…Artificial intelligence (AI) techniques, which can effectively analyze a mass of data and automatically provide accurate diagnosis results, has good potential for this. [6][7][8][9] However, the gearbox vibration signals are usually non-linear, non-stationary and noisy. Some conventional AI techniques such as support vector machine (SVM) and back propagation neural network (BPNN) are shallow architectures, which contain no more than one non-linear transformation, do not easily learn the complex non-linear relationships in the data.…”
Section: Introductionmentioning
confidence: 99%
“…One of the most common manners is to refine and extract the fault features from vibration signals by combination of a few of advanced signal processing methods (e.g., wavelet package transform (WPT) [8,10], hilbert transform(HT) [10,11], empirical mode decomposition (EMD) [11] and higher order spectra (HOS) [12]), to recognize the fault frequency used to compare with the theoretical value with involvement of expert’s empirical judgement. With the advent of artificial intelligence, the process of rolling bearing fault diagnosis is more and more treated as a procedure of fault pattern recognition, and its effectiveness and reliability significantly depend on the selection of dominant characteristic vector of the fault features [13]. Recently, Some entropy based methods, e.g., approximate entropy (ApEn) [14,15], sample entropy (SampEn) [16], fuzzy entropy (FuzzyEn) [16,17], hierarchical entropy (HE) [13,18] and hierarchical fuzzy entropy (HFE) [13], have been proposed to to extract characteristic vector of the fault features from bearing vibration signals.…”
Section: Introductionmentioning
confidence: 99%
“…With the advent of artificial intelligence, the process of rolling bearing fault diagnosis is more and more treated as a procedure of fault pattern recognition, and its effectiveness and reliability significantly depend on the selection of dominant characteristic vector of the fault features [13]. Recently, Some entropy based methods, e.g., approximate entropy (ApEn) [14,15], sample entropy (SampEn) [16], fuzzy entropy (FuzzyEn) [16,17], hierarchical entropy (HE) [13,18] and hierarchical fuzzy entropy (HFE) [13], have been proposed to to extract characteristic vector of the fault features from bearing vibration signals. In the paper, we introduce a multifractal theory based method, i.e., a generalized multifractal dimension algorithm, to extract dominant characteristic vector of the fault features from bearing vibration signals.…”
Section: Introductionmentioning
confidence: 99%
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