Título: Determining the Parameters of Active Modal Control in a Composite Beam Using Multi-objective Optimization Flower Pollination
Autores: SILVA, C. A. X.; TAKETA, E; KOROISHI, E. H; LARA-MOLINA, F. A.; FARIA; A. W.; LOBATO, F. S.
Revista: Journal of Vibration Engineering & Technologies, 1(1), 1-20, 2019.
Resumo: In this contribution, an active vibration control in a composite beam considering electromagnetic actuators is proposed. The control theory used was the linear quadratic regulator solved by linear matrix inequalities. The electromagnetic actuator was linearized using a methodology similar to that used in magnetic bearings. In order to reduce the displacement of the system and reduce the energy consumption by determining the parameters used in active control, a multi-objective optimization problem was formulated. To solve this problem, a new bio-inspired optimization strategy, Multi-objective Optimization Flower Pollination (MOFP) algorithm is presented. In general, this approach consists of extending the Flower Pollination algorithm to a multi-objective context considering two operators (non-dominated sorting strategy and crowding distance). The numerical results obtained by using the MOFP algorithm are compared with those obtained by using the Compromise Optimization Approach. From numerical simulations, the system's response was obtained in the time domain, which demonstrated the efficiency of the proposed technique in the active control of vibrations
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