Universidade Federal do Rio de Janeiro COPPE

Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia

Instituto de Matemática

 
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Evento: 'Palestra: Professor HISHAM ABOU-KANDIL'

Eventos PESC (Palestras, Seminários, etc.)
Palestras, Seminários, etc. do PESC/COPPE/UFRJ.
Data: Thursday, November 22, 2012 At 10:00
Duração: 2 Horas

Palestra: Professor HISHAM ABOU-KANDIL

École Normale Supérirure de Cachan
Paris, France

Data: 22 DE NOVEMBRO DE 2012 (quinta-feira)
Horário: 10:00 HORAS
Sala: H-324B, terceiro andar, bloco H, CT, UFRJ

Título: Active Vibration Damping Control for Light Flexible Mechanical Structures

Abstract
Vibrations in mechanical structures are one of the principle factors for crack occurrence in airplanes, satellites, bridges, … In this talk, piezoelectric actuators and sensors are used to damp vibrations in light flexible structures. To achieve an efficient control action, a model representing the interactions between piezoelectric patches and the structure is developed. The optimal positioning of actuators and sensors is then examined using controllability and observability properties of the system. A control algorithm is then developed based on pole placement and energy dissipation considerations. Examples are given for the case of clamped beam and plate.

Responsável: Nelson Maculan


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