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Control-based continuation is a recently-developed approach for testing nonlinear dynamic systems in a controlled manner and exploring their dynamic features as system parameters are varied. In this paper, control-based continuation is used to track directly in the experiment the steady-state periodic solutions of a single-degree-of-freedom oscillator presenting a softening-hardening restoring force. The oscillator forced response is investigated and fully characterized in forcing amplitude and frequency. The oscillator’s backbone curve is then extracted directly in the experiment by following a phase quadrature condition between the oscillator response and the base excitation.
|Title of host publication||Nonlinear Dynamics, Volume 1|
|Subtitle of host publication||Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016|
|Number of pages||9|
|Publication status||Published - 2016|
|Name||Conference Proceedings of the Society for Experimental Mechanics Series|
- Experimental nonlinear dynamics
- Forced response
- Backbone curves
- Control-based continuation
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- 1 Finished
1/09/13 → 1/09/15