Analysis of transient contact response of a sub-10 nanometer air-bearing slider (pico glide head) using empirical mode decomposition / Gang Sheng in Transactions of the ASME . Journal of tribology, Vol. 133 N° 3 (Juillet 2011)  

Public ISBD [article]  inTransactions of the ASME . Journal of tribology > Vol. 133 N° 3 (Juillet 2011) . - 09 p. Titre : Analysis of transient contact response of a sub-10 nanometer air-bearing slider (pico glide head) using empirical mode decomposition Type de document : texte imprimé Auteurs : Gang Sheng, Auteur ; Jizhong He, Auteur ; Shanlin Duan, Auteur Année de publication : 2012 Article en page(s) : 09 p. Note générale : Tribology Langues : Anglais (eng) Mots-clés : Hard discs Hilbert transforms Magnetic heads Piezoelectric transducers Transient response Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The transient dynamics of a sub-10 nanometer air-bearing slider (pico glide head) are experimentally investigated using piezoelectric transducer (PZT)signal. Empirical mode decomposition is used to resolve the nonstationary and nonlinear response of the slider under short contacts at high temporal resolution at high frequencies. The results indicate that the empirical mode decomposition can clearly distinguish weak impacts between slider and defects on disk. By using the combination of the power spectrum density of the decomposed signal and Hilbert spectrum, multiple consecutive events during contact are effectively resolved, and the nonstationary and nonlinear spectrum signature of slider contact response are characterized. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] [article] Analysis of transient contact response of a sub-10 nanometer air-bearing slider (pico glide head) using empirical mode decomposition [texte imprimé] / Gang Sheng, Auteur ; Jizhong He, Auteur ; Shanlin Duan, Auteur . - 2012 . - 09 p. Tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 133 N° 3 (Juillet 2011) . - 09 p. Mots-clés : Hard discs Hilbert transforms Magnetic heads Piezoelectric transducers Transient response Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The transient dynamics of a sub-10 nanometer air-bearing slider (pico glide head) are experimentally investigated using piezoelectric transducer (PZT)signal. Empirical mode decomposition is used to resolve the nonstationary and nonlinear response of the slider under short contacts at high temporal resolution at high frequencies. The results indicate that the empirical mode decomposition can clearly distinguish weak impacts between slider and defects on disk. By using the combination of the power spectrum density of the decomposed signal and Hilbert spectrum, multiple consecutive events during contact are effectively resolved, and the nonstationary and nonlinear spectrum signature of slider contact response are characterized. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...]

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