The aim of this paper is to investigate the potential of a self-sensing strategy in the case of an electromagnetic damper for the vibration control of flexible structures and rotors. The study has been performed in the case of a single degree of freedom mechanical oscillator actuated by a couple of electromagnets. The self-sensing system is based on a Luenberger observer. Two sets of parameters have been used: nominal ones (based on simplifications on the actuator model) and identified ones. In the latter case, the parameters of the electromechanical model used in the observer are identified starting from the open-loop system response. The observed states are used to close a state-feedback loop with the objective of increasing the damping of the system. The results show that the damping performance are good in both cases, although much better in the second one. Furthermore, the good correlation between the closed-loop model response and the experimental results validates the modeling, the identification procedure, the control design, and its implementation. The paper concludes on a sensitivity analysis, in which the influence of the model parameters on the closed-loop response is shown.
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November 2009
Research Papers
Self-Sensing Active Magnetic Dampers for Vibration Control
Angelo Bonfitto,
Angelo Bonfitto
Mechatronics Laboratory,
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italy
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Xavier De Lépine,
Xavier De Lépine
Mechatronics Laboratory,
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italy
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Mario Silvagni,
Mario Silvagni
Mechatronics Laboratory,
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italy
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Andrea Tonoli
Andrea Tonoli
Department of Mechanics, Mechatronics Laboratory,
e-mail: andrea.tonoli@polito.it
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italy
Search for other works by this author on:
Angelo Bonfitto
Mechatronics Laboratory,
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italy
Xavier De Lépine
Mechatronics Laboratory,
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italy
Mario Silvagni
Mechatronics Laboratory,
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italy
Andrea Tonoli
Department of Mechanics, Mechatronics Laboratory,
Politecnico di Torino
, Corso Duca degli Abruzzi, 24-10129 Torino, Italye-mail: andrea.tonoli@polito.it
J. Dyn. Sys., Meas., Control. Nov 2009, 131(6): 061006 (7 pages)
Published Online: November 10, 2009
Article history
Received:
October 16, 2008
Revised:
May 27, 2009
Online:
November 10, 2009
Published:
November 10, 2009
Citation
Bonfitto, A., De Lépine, X., Silvagni, M., and Tonoli, A. (November 10, 2009). "Self-Sensing Active Magnetic Dampers for Vibration Control." ASME. J. Dyn. Sys., Meas., Control. November 2009; 131(6): 061006. https://doi.org/10.1115/1.4000069
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