Publicação: Active control in rotating machinery using magnetic actuators with linear matrix inequalities (LMI) approach
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Data
2009-12-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
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Tipo
Trabalho apresentado em evento
Direito de acesso
Acesso aberto
Resumo
The recent years have seen the appearance of innovative system for acoustic and vibration attenuation, most of them integrating new actuator technologies. In this sense, the study of algorithms for active vibrations control in rotating machinery became an area of enormous interest, mainly due to countless demands of an optimal performance of mechanical systems in aircraft, aerospace and automotive structures. In this way, this paper presents an approach that is numerically verified for active vibration control in a rotor using Active Magnetic Bearings (AMB). The control design in a discrete state-space formulation is carried out through feedback technique and Linear Matrix Inequalities (LMI) approach. LMI is useful for system with uncertainties. The AMB uses electromagnetic forces to support a rotor without mechanical contact. By monitoring the position of the shaft and changing the dynamics of the system accordingly, the AMB keeps the rotor in a desired position. This unique feature has broadened for the applications of AMB and now they can be considered not only as a main support bearing in a machine but also as dampers for vibration control and force actuators. © 2009 Society for Experimental Mechanics Inc.
Descrição
Palavras-chave
Active magnetic bearing, Linear matrix inequalities (LMI), Rotating machinery, Vibration active control, Active control, Active Magnetic Bearing, Active magnetic bearings, Active vibration controls, Actuator technology, Automotive structures, Control design, Desired position, Electromagnetic forces, Feedback techniques, Force actuators, Innovative systems, Magnetic actuators, Mechanical contact, Mechanical systems, Optimal performance, State space formulation, Support bearings, Unique features, Vibration attenuation, Actuators, Aircraft control, Exhibitions, Innovation, Linear matrix inequalities, State space methods, Structural dynamics, Vibration control, Magnetic amplifiers
Idioma
Inglês
Como citar
Conference Proceedings of the Society for Experimental Mechanics Series.
