title: Improvement of adaptive GAs and back propagation ANNs performance in condition diagnosis of multiple bearing system using grey relational analysis.
abstract: Condition diagnosis of multiple bearings system is one of the requirements in industry field, because bearings are used in many equipment and their failure can result in total breakdown. Conditions of bearings commonly are reflected by vibration signals data. In multiple bearing condition diagnosis, it will involve many types of vibration signals data; thus, consequently, it will involve many features extraction to obtain precise condition diagnosis. However, large number of features extraction will increase the complexity of the diagnosis system. Therefore, in this paper, we presented a diagnosis method which is hybridization of adaptive genetic algorithms (AGAs), back propagation neural networks (BPNNs), and grey relational analysis (GRA) to diagnose the condition of multiple bearings system. AGAs are used in the diagnosis algorithm to determine the best initial weights of BPNNs in order to improve the diagnosis accuracy. In addition, GRA is applied to determine and select the dominant features from the vibration signal data which will provide good diagnosis of multiple bearings system in less features extraction. The experiments results show that AGAs-BPNNs with GRA approaches can increase the accuracy of diagnosis in shorter processing time, compared with the AGAs-BPNNs without the GRA.
authors.affiliation: School of Computer Science, Bina Nusantara University, Jakarta 11480, Indonesia.
authors.forename: Lili A
authors.initials: LA
authors.lastname: Wulandhari
authors.affiliation: School of Quantitative Sciences, UUM College of Arts and Sciences, Universiti Utara Malaysia, 06010 Sintok, Kedah, Malaysia.
authors.forename: Antoni
authors.initials: A
authors.lastname: Wibowo
authors.affiliation: Advanced Informatics School (AIS), Universiti Teknologi Malaysia, 54100 Kuala Lumpur, Malaysia.
authors.forename: Mohammad I
authors.initials: MI
authors.lastname: Desa
mesh_terms: D000465:Algorithms; D019544:Equipment Failure Analysis / Q000379:methods*; D006801:Humans; D016571:Neural Networks, Computer; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014732:Vibration