Eventos Anais de eventos
DINAME2019
DINAME2019
Active Modal Control Applying in a 2DOF Structure
Submission Author:
Edson Hideki Koroishi , SP , Brazil
Co-Authors:
Edson Hideki Koroishi, Joana Pereira Repinaldo, Fabian Andres Lara-Molina, Aldemir Ap Cavalini Jr, Valder Steffen Jr
Presenter: Fabian Andres Lara-Molina
doi://10.26678/ABCM.DINAME2019.DIN2019-0095
Abstract
This paper proposes an active modal control technique through electromagnetic actuators, which is applied to a structure with two degrees of freedom. To develop an effective control, it is necessary to build mathematical models capable of accurately representing the dynamic behavior of the mechanical system. The experimental characterization of the mechanical system of two degrees of freedom consists in identifying the unknown parameters through the solution of an inverse problem by using the optimization technique namely differential evolution. From the estimated parameters, it is possible to apply the active modal control to the system. The modal control was used since it allows the control of the vibration amplitude corresponding to a specific mode shape. The control was based on two different approaches. The first one is based on the neuro-fuzzy modal control and the second is based on the fuzzy logic approach. In the experimental tests, a state observer was included to estimate the modal states of the system. Numerical and experimental results demonstrate the effectiveness of the adopted control strategies considering the reduction of the vibration amplitudes.
Keywords
Active Modal Control, Neuro-Fuzzy Modal, Fuzzy Modal
