Detection of generalized-roughness bearing fault by spectral-kurtosis energy of vibration or current signals / Immovilli, Fabio in IEEE transactions on industrial electronics, Vol. 56 N° 11 (Novembre 2009)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 56 N° 11 (Novembre 2009) . - pp. 4710 - 4717 Titre : Detection of generalized-roughness bearing fault by spectral-kurtosis energy of vibration or current signals Type de document : texte imprimé Auteurs : Immovilli, Fabio, Auteur ; Cocconcelli, Marco, Auteur ; Bellini, Alberto, Auteur Article en page(s) : pp. 4710 - 4717 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Bearings Diagnostic reasoning Fault detection rotating-machine mechanical factors Rough surface Signal processing Spectral analysis wear Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Generalized roughness is the most common damage occurring to rolling bearings. It produces a frequency spreading of the characteristic fault frequencies, thus making it difficult to detect with spectral or envelope analysis. A statistical analysis of typical bearing faults is proposed here in order to identify the spreading bandwidth related to specific conditions, relying on current or vibration measurements only. Then, a diagnostic index based on the computation of the energy in the previously defined bandwidth is used to diagnose bearing faults. The proposed method was validated experimentally with vibration signals, with robust and reliable results. The same procedure can be extended to current signals. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5089424 [article] Detection of generalized-roughness bearing fault by spectral-kurtosis energy of vibration or current signals [texte imprimé] / Immovilli, Fabio, Auteur ; Cocconcelli, Marco, Auteur ; Bellini, Alberto, Auteur . - pp. 4710 - 4717. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 11 (Novembre 2009) . - pp. 4710 - 4717 Mots-clés : Bearings Diagnostic reasoning Fault detection rotating-machine mechanical factors Rough surface Signal processing Spectral analysis wear Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Generalized roughness is the most common damage occurring to rolling bearings. It produces a frequency spreading of the characteristic fault frequencies, thus making it difficult to detect with spectral or envelope analysis. A statistical analysis of typical bearing faults is proposed here in order to identify the spreading bandwidth related to specific conditions, relying on current or vibration measurements only. Then, a diagnostic index based on the computation of the energy in the previously defined bandwidth is used to diagnose bearing faults. The proposed method was validated experimentally with vibration signals, with robust and reliable results. The same procedure can be extended to current signals. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5089424

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