A two-stage fault diagnosis methodology for rotating machinery combining optimized support vector data description and optimized support vector machine

J Zhang, Q Zhang, X Qin, Y Sun - Measurement, 2022 - Elsevier
Most intelligent fault diagnosis methods of rotating machinery generally consider that normal
samples and fault samples as equally important for pattern recognition training. It ignores …

A GOA-MSVM based strategy to achieve high fault identification accuracy for rotating machinery under different load conditions

J Zhang, J Zhang, M Zhong, J Zheng, L Yao - Measurement, 2020 - Elsevier
Identifying fault of rotating machinery under different load conditions with high accuracy is a
remaining challenge for vibration signal based fault diagnosis. Aiming at this challenge, this …

Rotating machinery fault diagnosis based on multivariate multiscale fuzzy distribution entropy and Fisher score

Y Ma, J Cheng, P Wang, J Wang, Y Yang - Measurement, 2021 - Elsevier
With evaluating the randomness and the nonlinear dynamic change of time sequence
effectively, multiscale fuzzy distribution entropy (MFDE) is proposed to extract fault features …

A rotating machinery fault diagnosis method based on multi-scale dimensionless indicators and random forests

Q Hu, XS Si, QH Zhang, AS Qin - Mechanical systems and signal …, 2020 - Elsevier
Fault diagnosis methods based on dimensionless indicators have long been studied for
rotating machinery. However, traditional dimensionless indicators frequently suffer a low …

A two-stage feature selection and intelligent fault diagnosis method for rotating machinery using hybrid filter and wrapper method

X Zhang, Q Zhang, M Chen, Y Sun, X Qin, H Li - Neurocomputing, 2018 - Elsevier
Selecting the most discriminative features from the original high dimensional feature space
and finding out the optimal parameters for recognition model both have vital influences on …

A new feature extraction method based on EEMD and multi-scale fuzzy entropy for motor bearing

H Zhao, M Sun, W Deng, X Yang - Entropy, 2016 - mdpi.com
Feature extraction is one of the most important, pivotal, and difficult problems in mechanical
fault diagnosis, which directly relates to the accuracy of fault diagnosis and the reliability of …

Fault diagnosis for rotating machinery using multiscale permutation entropy and convolutional neural networks

H Li, J Huang, X Yang, J Luo, L Zhang, Y Pang - Entropy, 2020 - mdpi.com
In view of the limitations of existing rotating machine fault diagnosis methods in single-scale
signal analysis, a fault diagnosis method based on multi-scale permutation entropy (MPE) …

Hierarchical fuzzy entropy and improved support vector machine based binary tree approach for rolling bearing fault diagnosis

Y Li, M Xu, H Zhao, W Huang - Mechanism and Machine Theory, 2016 - Elsevier
A novel rolling bearing fault diagnosis method based on hierarchical fuzzy entropy (HFE),
Laplacian score (LS) and improved support vector machine based binary tree (ISVM-BT) is …

A novel cross-domain intelligent fault diagnosis method based on entropy features and transfer learning

Y Li, Y Ren, H Zheng, Z Deng… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Using transfer learning (TL) for fault detection and diagnosis has been a hot topic in
prognostic and health management (PHM) field. In this article, a systematic framework is …

Generalized refined composite multiscale fuzzy entropy and multi-cluster feature selection based intelligent fault diagnosis of rolling bearing

J Zheng, H Pan, J Tong, Q Liu - ISA transactions, 2022 - Elsevier
Extracting the failure related information from vibration signals is a very important aspect of
vibration-based fault detection for rolling bearing Multiscale entropy and its improvement …