Output Feedback Control of a Nonlinear Galfenol-Based Actuator for Active Vibration Control Systems

In this paper, an output feedback control strategy is proposed for a Galfenol-based actuator utilized in active vibration control systems. The design accounts for uncertain actuator dynamics in the presence of unknown loads and external disturbances. The dynamic characteristics of the Galfenol-based...

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Bibliographic Details
Main Authors: Clemente, C. S., Loschiavo, V. P., Davino, D., Monteiro, G. A., Saaideh, M. Al, Krejci, P., Al Janaideh, M.
Format: Conference Proceeding
Language:English
Subjects:
Actuators
Dynamics
Force
Sensitivity
Simulation
System dynamics
Vibration control
Online Access:Request full text
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Summary:In this paper, an output feedback control strategy is proposed for a Galfenol-based actuator utilized in active vibration control systems. The design accounts for uncertain actuator dynamics in the presence of unknown loads and external disturbances. The dynamic characteristics of the Galfenol-based actuator are elucidated through the constitutive relationship of magnetostrictive materials. The aim is to devise a control signal, represented by the input current of the coil, capable of producing an output force to counteract any undesired motion of the platform induced by unknown loads or external disturbances, thereby maintaining output displacement at zero. Simulation results demonstrate the effectiveness of the proposed control approach in regulating the platform's output displacement close to zero across various scenarios of unknown loads and external disturbances.
ISSN:2378-5861
DOI:10.23919/ACC60939.2024.10644880