On an Active Control for a Structurally Nonlinear Mechanical System, Taking Into Account an Energy Pumping
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Data
2009-07-01
Autores
Costa, S. N. J. [UNESP]
Balthazar, José Manoel [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Asme-amer Soc Mechanical Eng
Resumo
The purpose of this work is to investigate the control of the oscillations and the suppression of vibrations in damped and coupled oscillators. In this sense, we look into the potential of using a nonlinear energy sink in combination with an optimal linear control for nonlinear system to suppress structure vibrations under an impact load. As a result, we obtain that the nonlinear energy pumping (a one-way passive and almost irreversible energy flow from a linear main system to a nonlinear attachment that acts as a nonlinear energy sink) can be enhanced with the help of appropriate active control. The numerical results show the effectiveness of the approach presented here. [DOI: 10.1115/1.3124090]
Descrição
Palavras-chave
essential nonlinearity, optimal control design, nonlinear energy sink
Como citar
Journal of Computational and Nonlinear Dynamics. New York: Asme-amer Soc Mechanical Eng, v. 4, n. 3, p. 6, 2009.