Chemical process fault diagnosis based on enchanted machine‐learning approach

2019 ◽  
Vol 97 (12) ◽  
pp. 3074-3086 ◽  
Author(s):  
Xiaohui Yang ◽  
Jingsong Zhou ◽  
Zihao Xie ◽  
Gong Ke
Author(s):  
Alamelu Manghai T. M ◽  
Jegadeeshwaran R

Vibration-based continuous monitoring system for fault diagnosis of automobile hydraulic brake system is presented in this study. This study uses a machine learning approach for the fault diagnosis study. A hydraulic brake system test rig was fabricated. The vibration signals were acquired from the brake system under different simulated fault conditions using a piezoelectric transducer. The histogram features were extracted from the acquired vibration signals. The feature selection process was carried out using a decision tree. The selected features were classified using fuzzy unordered rule induction algorithm ( FURIA ) and Repeated Incremental Pruning to Produce Error Reduction ( RIPPER ) algorithm. The classification results of both algorithms for fault diagnosis of a hydraulic brake system were presented. Compared to RIPPER and J48 decision tree, the FURIA performs better and produced 98.73 % as the classification accuracy.


1998 ◽  
Vol 22 (1-2) ◽  
pp. 299-321 ◽  
Author(s):  
B. Özyurt ◽  
A.K. Sunol ◽  
M.C. Çamurdan ◽  
P. Mogili ◽  
L.O. Hall

Entropy ◽  
2021 ◽  
Vol 23 (9) ◽  
pp. 1130
Author(s):  
Jan Vrba ◽  
Matous Cejnek ◽  
Jakub Steinbach ◽  
Zuzana Krbcova

This study proposes a fully automated gearbox fault diagnosis approach that does not require knowledge about the specific gearbox construction and its load. The proposed approach is based on evaluating an adaptive filter’s prediction error. The obtained prediction error’s standard deviation is further processed with a support-vector machine to classify the gearbox’s condition. The proposed method was cross-validated on a public dataset, segmented into 1760 test samples, against two other reference methods. The accuracy achieved by the proposed method was better than the accuracies of the reference methods. The accuracy of the proposed method was on average 9% higher compared to both reference methods for different support vector settings.


2016 ◽  
Vol 35 (2) ◽  
pp. 128-138 ◽  
Author(s):  
CK Madhusudana ◽  
S Budati ◽  
N Gangadhar ◽  
H Kumar ◽  
S Narendranath

The fast developing wind industry has revealed a requirement for more multifaceted fault diagnosis system in the segments of a wind turbine. “Present wind turbine researches concentrate on enhancing their dependability quality and decreasing the cost of energy production, especially when wind turbines are worked in off-shore places. Wind turbine blades are ought to be an important component among the other basic segments in the wind turbine framework since they transform dynamic energy of wind into useable power and due to environmental conditions, it get damage often and cause lack in productivity. The main objective of this study is to carry out a fault identification model for wind turbine blade using a machine learning approach through vibration data to classify the blade condition. Here five faults namely, blade bend, hub-blade loose connection, blade cracks, blade erosion and pitch angle twist have been considered. Machine learning approach has three steps namely feature extraction, feature selection and feature classification. Feature extraction was carried out by statistical analysis followed by feature selection using J48 decision tree algorithm. Feature classification was done using twelve rule based classifiers using WEKA. The results were compared with respect to the classification accuracy and the computational time of the classifier.”


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