A simplified approach to failure analysis of ball bearings combining Principal Component Analysis and Fast Fourier Transform.

ABSTRACT: Ball bearing monitoring employs time-frequency techniques to facilitate the early detection of faults; however, the presence of non-stationary or noisy signals can limit the effectiveness of these techniques, requiring advanced methods for reliable predictive maintenance. This study proposes a methodology for fault detection in complex systems,utilising Principal Component Analysis (PCA) to identify indicators with a higher probability of fault. Subsequent to this, the signal characteristics are decomposed using the Fast Fourier Transform (FFT). This technique is employed to identify the Hotelling component and the SPE (quadratic prediction error), with the objective of determining the state of health of the rolling bearings. This is achieved by extracting the frequencies and harmonics tha

SUBMITTER: Ndongue Esseme E 

PROVIDER: S-EPMC12614601 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature