Structural sparsity in control design of active and semi-active systems

Alvaro Javier Florez, Luis Felipe Giraldo, Mariantonieta Gutierrez Soto, Fernel Orlando Zuñiga

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Civil building structures equipped with active or semi-active control devices help mitigate structural damages in the presence of any seismic excitation. These advanced mitigation systems require additional devices such as sensors, actuators, and communication systems that increase issues related to energy consumption, measurement errors, and costs of implementation. In this work, we propose a methodology based on the concept of structural sparsity to induce a sparse pattern in the feedback control system that takes into account prior information on the inherent relationship between the variables of the controller. This methodology can potentially decrease the implementation costs while keeping a suitable performance of the structure when subjected to external disturbances. We show through mathematical analyses and simulation results the benefits of using the proposed methodology in both active and semi-active systems.

Original languageEnglish
Article numbere2758
JournalStructural Control and Health Monitoring
Volume28
Issue number8
DOIs
StatePublished - Aug 2021

Bibliographical note

Funding Information:
This study is supported by Vicerrectoria de Investigaciones, Universidad de los Andes, Fondo para Apoyo de Profesores Asistentes (FAPA).

Publisher Copyright:
© 2021 John Wiley & Sons, Ltd.

Keywords

  • active control
  • earthquake engineering
  • optimal control
  • semi-active control
  • structural control
  • structural sparsity norm

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials

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