Paper Info
Title
Hierarchical k-nearest neighbours classification and binary differential evolution for fault diagnostics of automotive bearings operating under variable conditions.
Abstract
Electric traction motors in automotive applications work in operational conditions characterized by variable load, rotational speed and other external conditions: this complicates the task of diagnosing bearing defects. The objective of the present work is the development of a diagnostic system for detecting the onset of degradation, isolating the degrading bearing, classifying the type of defect. The developed diagnostic system is based on an hierarchical structure of K-Nearest Neighbours classifiers. The selection of the features from the measured vibrational signals to be used in input by the bearing diagnostic system is done by a wrapper approach based on a Multi-Objective (MO) optimization that integrates a Binary Differential Evolution (BDE) algorithm with the K-Nearest Neighbor (KNN) classifiers. The developed approach is applied to an experimental dataset. The satisfactory diagnostic performances obtain show the capability of the method, independently from the bearings operational conditions.
Year
DOI
Venue
2016
10.1016/j.engappai.2016.08.011
Engineering Applications of Artificial Intelligence
Keywords
Field
DocType
Bearing diagnostics,K-Nearest Neighbours (KNN) classifier,Feature selection,Wrapper approach,Multi-Objective (MO) optimization,Differential Evolution (DE),Wavelet Packet Transform (WPD)
Binary differential evolution,Diagnostic system,Feature selection,Computer science,Bearing (mechanical),Variable load,Artificial intelligence,Electric traction,Rotational speed,Machine learning,Automotive industry
Journal
Volume
ISSN
Citations 
56
0952-1976
11
PageRank 
References 
Authors
0.53
32
4
Name
Order
Citations
PageRank
Piero Baraldi123621.96
Francesco Cannarile2120.88
Francesco Di Maio312414.20
Enrico Zio4777.43