Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
FUZZY COGNITIVE MAPS APPLIED TO ACTIVE MODAL CONTROL OF A MECHANICAL SYSTEM
Submission Author:
Márcio Mendonça , Pr
Co-Authors:
Lucas Botoni de Souza, Joana Pereira Repinaldo, Edson Hideki Koroishi, Márcio Mendonça, Fabian Andres Lara-Molina
Presenter: Lucas Botoni de Souza
doi://10.26678/ABCM.COBEM2019.COB2019-1542
Abstract
The present contribution is dedicated to the experimental application of Fuzzy Cognitive Maps to the active vibration modal control of a simple mechanical structure by using electromagnetic to the structure without mechanical contact. In this case, the representative mathematical model of a two degree of freedom mass-spring-damper system was used. A model updating procedure based on the differential evolution optimization technique was used to determine the stiffness and damping coefficients of the considered test rig. Based on the identified parameters, it was possible to apply an active modal control technique to the structure. The vibration controller is based on Fuzzy Cognitive Maps (FCM), which combines aspects of the fuzzy logic and artificial neural networks. Moreover, the Kalman filter estimator was used to determine the modal states used by the controller and to filter the measured displacement signal. The numerical results demonstrated the effectiveness of the adopted control strategy dedicated to the reduction of the amplitude of the structure vibration response.
Keywords
Active Modal Control, Fuzzy Cognitive Maps, Electromagnetic Actuators
