On suppression of chaotic motions of a portal frame structure under non-ideal loading using a magneto-rheological damper

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Data

2015

Autores

Tusset, Angelo Marcelo
Piccirillio, Vinicius
Balthazar, José Manoel [UNESP]
Brasil, Reyolando Manoel Lopes Rebello da Fonseca

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Resumo

We consider chaotic motions of a portal frame structure under non-ideal loading. To suppress this chaotic behavior, a controlling scheme is implemented. The control strategy involves application of two control signals and nonlinear feedforward control to maintain a desired periodic orbit, and state feedback control to bring the system trajectory into the desired periodic orbit. Additionally, the control strategy includes an active magneto-rheological damper to actuate the system. The control force of the damper is a function of the voltage applied in the coil of the damper that is based on the force given by the controller.

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Feedback control, Feedforward control, MR damper

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Journal of Theoretical and Applied Mechanics, v. 53, n. 3, p. 653-664, 2015.