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What is Time-Frequency Analysis of Gear Faults about?

The document analyzes vibration data from a gear with a developing crack using time-frequency analysis techniques. It shows results from spectrograms, Wigner-Ville distributions, Choi-Williams distributions, and Zhao-Atlas-Marks distributions of the gear vibration recorded at various times before failure under different loads. Across the techniques, the earliest visible indication of the crack is a drop in energy at a specific frequency 103 hours before failure. As the crack progresses, the affected region

Author

mghgol

Language

EN