RT info:eu-repo/semantics/article T1 Multi-rate vibration signal analysis for bearing fault detection in induction machines using supervised learning classifiers A1 El Bouharrouti, Nada A1 Moríñigo Sotelo, Daniel A1 Belahcen, Anouar K1 Machinery - Monitoring K1 Sistema de Monitoreo K1 Sampling (Statistics) K1 Mechanical engineering K1 Electrical engineering K1 Machine learning K1 Aprendizaje automático K1 Vibration K1 1209.10 Teoría y Técnicas de Muestreo K1 3313 Tecnología E Ingeniería Mecánicas K1 3306 Ingeniería y Tecnología Eléctricas K1 2201.11 Vibraciones AB Vibration signals carry important information about the health state of a ball bearing and have proven their efficiency in training machine learning models for fault diagnosis. However, the sampling rate and frequency resolution of these acquired signals play a key role in the detection analysis. Industrial organizations often seek cost-effective and qualitative measurements, while reducing sensor resolution to optimize their resource allocation. This paper compares the performance of supervised learning classifiers for the fault detection of bearing faults in induction machines using vibration signals sampled at various frequencies. Three classes of algorithms are tested: linear models, tree-based models, and neural networks. These algorithms are trained and evaluated on vibration data collected experimentally and then downsampled to various intermediate levels of sampling, from 48 kHz to 1 kHz, using a fractional downsampling method. The study highlights the trade-off between fault detection accuracy and sampling frequency. It shows that, depending on the machine learning algorithm used, better training accuracies are not systematically achieved when training with vibration signals sampled at a relatively high frequency. PB MDPI SN 2075-1702 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/67988 UL https://uvadoc.uva.es/handle/10324/67988 LA eng NO Machines, 2024, Vol. 12, Nº. 1, 17 NO Producción Científica DS UVaDOC RD 14-oct-2024