Novel method of informative frequency band selection for vibration signal using Nonnegative Matrix Factorization of spectrogram matrix

• Published in: Mechanical systems and signal processing Vol. 130; pp. 585 - 596
• Main Authors: Wodecki, Jacek, Kruczek, Piotr, Bartkowiak, Anna, Zimroz, Radoslaw, Wyłomańska, Agnieszka
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2019
• Subjects: Filtration; Nonnegative Matrix Factorization; Spectrogram; Time-frequency representation; Vibration measurement; Vibration measurement; Nonnegative Matrix Factorization; Filtration; Time-frequency representation; Spectrogram

•Novel technique is proposed to diagnose vibration data from rolling bearing.•It allows to isolate component of local damage from among other impulsive components.•Algorithm is based on nonnegative matrix factorization of the spectrogram matrix.•Results are based on vibration data measured on a bear...