Fault diagnosis strategy of CNC machine tools based on cascading failure
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DOI: 10.1007/s10845-017-1382-7
Abstract: To ensure the safe operation of CNC machines, a fault diagnosis strategy based on cascading failure is proposed. According to fault mechanism analysis, a directed graph model of fault propagation between components in machine tool… read more here.
Keywords: machine; failure; diagnosis strategy; fault diagnosis ... See more keywords
A rolling bearing fault diagnosis strategy based on improved multiscale permutation entropy and least squares SVM
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DOI: 10.1007/s12206-017-0514-5
Abstract: A novel rolling bearing fault diagnosis strategy is proposed based on Improved multiscale permutation entropy (IMPE), Laplacian score (LS) and Least squares support vector machine-Quantum behaved particle swarm optimization (QPSO-LSSVM). Entropy-based concepts have attracted attention… read more here.
Keywords: fault; entropy; bearing fault; rolling bearing ... See more keywords
A Diagnosis Strategy for Multiple IGBT Open-Circuit Faults of Modular Multilevel Converters
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DOI: 10.1109/tpel.2020.2997963
Abstract: Multiple insulated gate bipolar transistor (IGBT) open-circuit faults severely affect the reliable operation of modular multilevel converters (MMCs). The existing literatures have not provided an effective diagnosis algorithm for MMCs when multiple IGBT open-circuit faults… read more here.
Keywords: igbt open; diagnosis strategy; circuit faults; open circuit ... See more keywords