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- Title
Faulty bearing features by variational mode decomposition.
- Authors
Zarour, Djamal; Meziani, Salim; Kedadouche, Mourad; Thomas, Marc
- Abstract
This paper proposes a hybrid method based on Variational Mode Decomposition method (VDM) for detection of faulty bearing frequencies. The application of this method calls for a determination of the number of relevant frequencies K and a balancing parameter α; these are the key parameters of the VDM method. The operational modal analysis method and correlation coefficients are used respectively to estimate theses required parameters. The proposed method has been applied on experimental bearing signals at their early stages of degradation from 50 μm to 200 μm, as well as at an advanced stage of 2 mm. Results show a good identification of faulty bearing frequencies, which allows for the determination of the degradation severity.
- Subjects
BEARINGS (Machinery); HILBERT-Huang transform; MODAL analysis; SIGNAL processing; ROTATING machinery
- Publication
Vibroengineering Procedia, 2017, Vol 16, p29
- ISSN
2345-0533
- Publication type
Article
- DOI
10.21595/vp.2017.19336