Multiple local damage detection method based on time-frequency representation and agglomerative hierarchical clustering of temporary spectral content

• Published in: Applied acoustics Vol. 147; pp. 44 - 55
• Main Authors: Sokołowski, J., Obuchowski, J., Wyłomańska, A., Kruczek, P., Zimroz, R.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2019
• Subjects: Clustering; Short-time Fourier transform; Source signals separation; Clustering; Source signals separation; Short-time Fourier transform

Vibration signals acquired on machines operating in industrial conditions often consist of mixture of various components. From local damage detection perspective, signal could be considered as regular part with spectral content related to kinematics and normal operation of machine and periodic, wide...