• Aucun résultat trouvé

Combining RBF-PCA-ReliefF Filter for a betterdiagnosis performances in rotating machines

N/A
N/A
Info
Télécharger
Protected

Academic year: 2021

Partager "Combining RBF-PCA-ReliefF Filter for a betterdiagnosis performances in rotating machines"

Copied!
1
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

Condition Monitoring of Machinery in Non-Stationary Operations

2012, Pages 285-292

Combining RBF-PCA-ReliefF Filter for a better diagnosis performances in rotating machines

Ilyes khelf, Lakhdar Laouar, Hocine BENDJAMA, Abdelaziz M Bouchelaghem

Abstract: Monitoring and faults diagnosis in rotating machinery is a current research field. In this direction the use of pattern recognition combined with non-destructive testing techniques such as' vibration analysis and signal processing can be very useful.

In this paper was proposed, a diagnosis method of rotating machinery using vibration signatures with a Radial Basis Function classifier. The recorded signals were preprocessed with a Wavelet Decomposition and indicators were extracted both in temporal and frequency domain. To improve diagnosis performance, two techniques for dimension reduction of indicators space are combined; Principal Component Analysis and the filter ReliefF. The method was tested on real signatures from a vibration test bench, operating under several conditions, the results showed the interest to look closely at the choice of indicators in order to have best diagnosis performance.

Keywords : diagnosis, Rotating machinery, principal component analysis, radial basis function

Centre de Recherche en Technologies Industrielles - CRTI - www.crti.dz

Powered by TCPDF (www.tcpdf.org)

Références

Télécharger maintenant ( PDF - 1 Page - 7.70 KB )

Documents relatifs

A new look at the interfaces in percolation

configuration, some additional edges are closed, but they are typically within a distance of order (ln |Λ|) 2 of the set P of the pivotal edges.. The edges which are further away from

Unconventional trajectories on the Bloch Sphere: A closer look at the effects and consequences of the breakdown of the rotating wave approximation

Figure 1 highlights the general effects of the breakdown of the RWA due to a strong counter-rotating B field: the trajectory undergoes cycloid motion and a perfect π-pulse cannot

Combining RBF-PCA-ReliefF Filter for a better diagnosis performances in rotating machines

To improve diagnosis performance, two techniques for dimension reduction of indicators space are combined; Principal Component Analysis and the filter ReliefF. The

Contribution to the minimization of vibration of rotating machines

The vibrations from them may êtregênantes; they are the source of some noise radiated by this machine and are therefore undesirable for users, they can be transmitted to

On the interest of introducing performance indicators in the local urban transport in France: a proposal for a European benchmarking analysis

Whereas in France, the idea to develop a regulation by the performance emerges, in other countries like England or Norway, the practice of the measurement of the performance of

From the genome to the transcriptome for the characterization of networks controlling the expression of hydrolytic enzymes in a fungus of industrial interest.

When we performed the HAC analysis, the hydrophobin gene was classified with the hemicellulase genes, but the correlation matrix showed that the expression pattern of

Results from the test bench of the Geometry Monitoring System of the ALICE Muon Spectrometer

It shows that the reconstruction program is able to retrieve with an accuracy of 1.5 µm (in the transverse direction) the displacement induced by the translation stages relatively

A test bench for the Front End Chip of the AMS RICH

It includes a GPIB module which is dedicated to the measurement of the power consumption and a high speed digital I/O board (coupled to the testing board)