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Shock and Vibration
Volume 2016, Article ID 2438902, 14 pages
http://dx.doi.org/10.1155/2016/2438902
Research Article

Vibration Control of Double-Beam System with Multiple Smart Damping Members

1Institute of Fundamental Technological Research (IPPT), Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
2Faculty of Production Engineering Warsaw University of Technology, Narbutta 85, 02-524 Warsaw, Poland

Received 27 May 2016; Revised 2 September 2016; Accepted 19 September 2016

Academic Editor: Andras Szekrenyes

Copyright © 2016 Dominik Pisarski et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A control method to stabilize vibration of a double cantilever system with a set of smart damping blocks is designed and numerically evaluated. The externally controlled magnetorheological sheared elastomer damping block is considered, but other smart materials can be used as well. The robust bang-bang control law for stabilization the bilinear system is elaborated. The key feature of the closed loop controller is the efficiency for different types of initial excitement. By employing the finite element model, the performance of the controller is validated for strong wind blow load and concentrated impact excitement of the particular point of one of the beams. For each of the excitations, the closed loop control outperforms the optimal passive damping case by over 27% for the considered energy metric.