التفاصيل البيبلوغرافية
| العنوان: |
Multi-scale energy exchanges between an elasto-plastic oscillator and a light nonsmooth system with external pre-stress. |
| المؤلفون: |
Weiss, Mathieu, Chenia, Mahmoud, Ture Savadkoohi, Alireza, Lamarque, Claude-Henri, Vaurigaud, Bastien, Hammouda, Abdelaziz |
| المصدر: |
Nonlinear Dynamics; Jan2016, Vol. 83 Issue 1/2, p109-135, 27p |
| مستخلص: |
Vibratory energy exchanges between two coupled oscillators is studied: the main elasto-plastic oscillator is coupled to a nonlinear energy sink(NES) with nonsmooth potential. Both oscillators are under pre-stressing terms. Two different methods are implemented for tracing system behaviours: (i) the time-event-driven technique which builds exact solutions of governing equations of the system phase by phase and (ii) the multi-scale method which traces system behaviours at different scales of time. It detects invariant of the system at fast timescale and equilibrium/singular points at slow timescales. The pre-stressing terms produce a more complex shape for the invariant, while detected dynamics at slow timescale let us have control at the behaviour of the system during its quasi-steady-state regime(s) which leads to have analytical design tools for tuning parameters of nonlinear energy sink according to design purposes (passive control and/or energy harvesting). [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |