Active damping for vibration control based on the switched stiffness technique
| Autor: | Rafael Ayala, Luis Moreno-Ahedo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Floquet theory
Optimization problem Computer science Mechanical Engineering Vibration control Stiffness periodic control 02 engineering and technology switchable stiffness 01 natural sciences Stability (probability) 020303 mechanical engineering & transports 0203 mechanical engineering Exponential stability Control theory Robustness (computer science) 0103 physical sciences medicine TJ1-1570 General Materials Science Mechanical engineering and machinery medicine.symptom 010301 acoustics floquet theory |
| Zdroj: | Journal of Vibroengineering, Vol 23, Iss 4, Pp 891-907 (2021) |
| ISSN: | 2538-8460 1392-8716 |
| Popis: | An active damping controller based on the switched stiffness technique is developed and applied to vibration mitigation in a lightly damped structure. The controller either increases or decreases the system stiffness according to a state-dependent rule. A novel stability analysis based on the Floquet theory is proposed and employed to analyze the mathematical model of a one-degree-of-freedom system where the friction forces are taken into account. This novel analysis allows us to prove the exponential stability of the system origin, to establish a tuning procedure for the controller gain, to solve an optimization problem and to show the controller robustness against parameter uncertainties. Experimental verification is conducted to validate the effectiveness of the controller, and it is shown that the controller is feasible for vibration control problems. |
| Databáze: | OpenAIRE |
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