Controle de estruturas flexíveis levando em conta o projeto simultâneo da estrutura e do controlador / Flexible structures control considering the simultaneous design of structure and controller

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This work proposes techniques for the design of smart structures, that is, those structures that consider simultaneously the design of some of its parameters and the design of the controller. This type of approach allows to find a global design that will result either in a structure without the active controller requirement (i.e. a passive design) or the optimal controller for a specific structure. This point of view can be considered as one of the most innovative in the design and control of structures, because it provides more appropriate controllers in terms of desired performance and costs involved to control the structure. The approach used is based on optimization methods. In this case, the control design problem was formulated using the concepts of linear matrix inequalities and H? formulation, which is a current methodology in the area of robust and optimal control. It allows that other parameters of the structure can be considered as decision variables, representing a parametric optimization of structure together with the controller design. In this work, the simultaneous optimization and control for vibration suppression in a flexible beam was performed using three kinds of optimization strategies, called here as passive structural optimization, active serial optimization and active simultaneous optimization. The implementation was performed using the MATLAB software

ASSUNTO(S)

vibração - controle otimização estrutural vibration control optimization structural

ACESSO AO ARTIGO

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