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Titel |
A model for aperiodicity in earthquakes |
VerfasserIn |
B. Erickson, B. Birnir, D. Lavallée |
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 ; 15, no. 1 ; Nr. 15, no. 1 (2008-01-07), S.1-12 |
Datensatznummer |
250012549
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Publikation (Nr.) |
copernicus.org/npg-15-1-2008.pdf |
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Zusammenfassung |
Conditions under which a single oscillator model coupled with
Dieterich-Ruina's rate and state dependent friction exhibits chaotic dynamics
is studied. Properties of spring-block models are discussed. The parameter
values of the system are explored and the corresponding numerical solutions
presented. Bifurcation analysis is performed to determine the bifurcations
and stability of stationary solutions and we find that the system undergoes a
Hopf bifurcation to a periodic orbit. This periodic orbit then undergoes a
period doubling cascade into a strange attractor, recognized as broadband
noise in the power spectrum. The implications for earthquakes are discussed. |
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