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| Titel |
Electromagnetic and mechanical control of slip: laboratory experiments with slider system |
| VerfasserIn |
T. Chelidze, O. Lursmanashvili |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 10, no. 6 ; Nr. 10, no. 6, S.557-564 |
| Datensatznummer |
250008211
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| Publikation (Nr.) |
 copernicus.org/npg-10-557-2003.pdf |
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| Zusammenfassung |
| Field and laboratory
data reveal the possibility of a significant coupling of elastic and
electromagnetic (EM) fields that affect (hamper or initiate) slip. In this
work we try to prove experimentally the possibility of controlling the
slip regime by relatively weak mechanical or EM impact, in the way it has
been done in nonlinear dynamic experiments on the control of chaos. The
experimental setup consisted of a system of two plates of roughly finished
basalt, where a constant pulling force was applied to the upper (sliding)
plate. In addition, the same plate was subjected to mechanical or electric
periodic perturbations, which are much weaker when compared to the pulling
force. Quite different regimes of slip were excited depending on the
amplitude and the frequency of applied weak perturbations. The observed
regimes of slip vary from perfect synchronization of slip events, recorded
as acoustic emission bursts with the perturbing periodic mechanical or EM
impact, to their complete desynchronization. We consider the obtained
results as evidence that it is possible to control slip by the application
of weak periodic perturbations. The phenomenon can be explained in terms
of nonlinear dynamics and synchronization theory. |
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