PI semiactive control using MR dampers
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Cita com:
hdl:2117/11068
Tipus de documentComunicació de congrés
Data publicació2010
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Magnetorheological (MR) dampers are a promising alternative structural active actuators as they provide adjustable damping over a wide range of frequencies without large power requirements. However, the complex dynamics that characterizes these devices makes it difficult to formulate control laws based on the MR damper model. Instead, many semiactive control strategies proposed in the literature have been based on the idea of ”clipping” the voltage signal so that the MR damper force ”tracks” a desired active control force which is computed on-line. With this idea many algorithms have been proposed using, among others, techniques such as optimal control, H∞ control,sliding mode control, backstepping and QFT.
This work presents a semiactive control strategy based on the same idea of ”clipping”
the voltage signal but using a simpler PI design. The proportional and integral gains
of the controller are calculated so that the controller guarantees stability, minimization
of the closed loop response and robustness against modeling errors. Effectiveness of
the control strategy is compared to some others techniques and passive cases as well.
Simulation results shows that this simple strategy can effectively improve the structural responses and achieve performance index comparable to that of more complex
algorithms.
CitacióAguirre, N.; Ikhouane, F.; Rodellar, J. PI semiactive control using MR dampers. A: International Conference on Motion and Vibration Control. "10th International Conference on Motion and Vibration Control (MOVIC 2010): Tokyo, Japan: August 17-20, 2010: proceedings". Tokyo: 2010.
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Aguirre_MOVIC2010.pdf | 265,7Kb | Visualitza/Obre |