Smart Structures and Systems

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Vibration control of hysteretic base-isolated structures: an LMI approach

  • Pozo, Francesc (CoDAlab, Department of Applied Mathematics III, Escola Universitaria d'Enginyeria Tecnica Industrial de Barcelona (EUETIB), Universitat Politecnica de Catalunya (UPC)) ;
  • Pujol, Gisela (CoDAlab, Department of Applied Mathematics III, Escola d'Enginyeria de Terrassa (EET), Universitat Politecnica de Catalunya (UPC)) ;
  • Acho, Leonardo (CoDAlab, Department of Applied Mathematics III, Escola Universitaria d'Enginyeria Tecnica Industrial de Barcelona (EUETIB), Universitat Politecnica de Catalunya (UPC))
  • Received : 2015.02.05
  • Accepted : 2015.08.11
  • Published : 2016.02.25
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Abstract

Seismic isolation systems are essentially designed to preserve structural safety, prevent occupants injury and properties damage. An active saturated LMI-based control design is proposed to attenuate seismic disturbances in base-isolated structures under saturation actuators. Using a mathematical model of an eight-storied building structure, an active control algorithm is designed. Performance evaluation of the controller is carried out in a simplified model version of a benchmark building system, which is recognized as a state-of-the-art model for numerical experiments of structures under seismic perturbations. Experimental results show that the proposed algorithm is robust with respect to model and seismic perturbations. Finally, the performance indices show that the proposed controller behaves satisfactorily and with a reasonable control effort.

Keywords

Acknowledgement

Supported by : CICYT (Spanish Ministry of Economy and Competitiveness)

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