| Titre : | Analysis of transient contact response of a sub-10 nanometer air-bearing slider (pico glide head) using empirical mode decomposition (2012) |
| Auteurs : | Gang Sheng, Auteur ; Jizhong He, Auteur ; Shanlin Duan, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Transactions of the ASME . Journal of tribology (Vol. 133 N° 3, Juillet 2011) |
| Article en page(s) : | 09 p. |
| Note générale : | Tribology |
| Langues : | Anglais |
| Index. décimale : | 621.5 (Energie pneumatique. Machinerie et outils. Réfrigération) |
| Tags : | Hard discs Hilbert transforms Magnetic heads Piezoelectric transducers Transient response |
| 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=JOTRE9000133000003031901000001&idtype=cvips&gifs=Yes&ref=no |
