Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Self-Sensing Active Vibrations Control Using Electromagnetic Actuators
Submission Author:
Beatriz Marangoni , MG
Co-Authors:
Beatriz Marangoni, Felipe Carvalho , Marcus Vinicius Fernandes de Oliveira, Aldemir Ap Cavalini Jr, Valder Steffen Jr
Presenter: Beatriz Marangoni
doi://10.26678/ABCM.COBEM2021.COB2021-0713
Abstract
The present work aims to apply an active vibration control (AVC) approach using electromagnetic actuators and the self-sensing methodology. The voltage and current present in the electromagnetic coils are used as a control action, thus not requiring physical displacement sensors. In this work, the mentioned control approach was applied in a test rig composed of a clamped-clamped beam and two electromagnetic actuators placed in a differential configuration. The beam was mathematically represented using a one degree of freedom (DoF) mass-spring-damper system. Thus, a self-sensing proportional-integral-derivative (PID) control was analyzed for different external excitation frequencies. The obtained results demonstrated the efficiency of the conveyed approach in reducing the vibration amplitudes of the considered model. Regarding the experimental tests, a shaker was used to apply the external excitation with different frequencies applied separately in the beam within a range of interest. The purpose of these tests was to verify the behavior of the self-sensing actuator/controller set and to validate this control methodology under different conditions. Besides, a conventional proportional-derivative (PD) controller was applied using the vibration responses of the beam measured using an accelerometer. Thus, comparisons were made between the results obtained by these two control approaches. Both numerical and experimental tests demonstrated the effectiveness of the considered self-sensing control methodology.
Keywords
Electromagnetic Actuators, Vibration control, Mass-Spring-Damper, Self-Sensing, test rig
