Robust Optimal Control Applied to a Composite Laminated Beam

The present work proposes the active vibration control in a beam of composite material, using electromagnetic actuators, in order to obtain a reduction in the response of the displacement of the system associated to a reduction in energy consumption. The control theory used was the linear quadratic regulator solved by linear matrix inequalities. The electromagnetic actuator was then linearized using a methodology similar to that used in magnetic bearings. The work also proposes to study the optimization of parameters applied in this active control, by means of the heuristic optimization methods. From numerical simulations, the system´s response was obtained in the time domain that demonstrated the efficiency of the proposed technique in the active control of vibrations.

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“…3 shows the schematic form of the controller. This controller was designed using LQR solved by LMIs [5]. Fig.…”

Section: Methodsmentioning

confidence: 99%

Optimization of parameters of a modal active control in a beam of composite material

et al. 2018

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“…Other applications are also mentioned, such as the optimization of the electromagnetic actuator [8] and the study and analysis of the electromagnetic actuator [9]. Finally, the characterization of an electromagnetic actuator applied to active vibration control in rotating machines was highlighted [10].…”

Section: Introductionmentioning

confidence: 99%

Optimal Coil Design of an Electromagnetic Actuator Using Particle Swarm Optimization

Chiarello¹,

Malagoli²

2020

JESA

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This paper aims to reduce the heating of the electromagnetic actuators of a magnetic bearing. The electrical current of the coils was above normal, so the need for a new coil design to reduce heating due to high currents. In this scenario, the proposed methodology allows minimizing copper losses using Particle Swarm Optimization, so that the best result of the design parameters will be used in the construction of the new coil for the actuator. For the development of this work, it was decided to use a computational tool for public use, FEMM (Finite Element Method Magnetics) to simulate the electromagnetic device. In the simulations, the densities of magnetic fluxes in the core and in the air gap are shown, as well as the energies, electromagnetic forces and losses in the copper of the electromagnetic actuator winding. Finally, an optimal model of the actuator is obtained through the use of optimization techniques. Therefore, the results obtained demonstrate that the proposed methodology is configured as an interesting strategy for the purpose of this work.

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“…Viga de material compósito em engaste-livre(KOROISHI et al, 2015). corrente elétrica é determinada pela planta de controle e, desta forma, ela é determinada de acordo com a solicitação do sistema.A bobina é composta de 250 espiras, em que no enrolamento foi utilizado fio de cobre do padrão AWG24.…”

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