Semiactive backstepping control for vibration reduction in a structure with magnetorheological damper subject to seismic motions

Mauricio Zapateiro, Hamid Reza Karimi, Ningsu Luo, Brian M. Phillips, B F Spencer

Research output: Contribution to journalArticlepeer-review

Abstract

The use of magnetorheological (MR) dampers for mitigating vibrations caused by seismic motions in civil engineering structures has attracted much interest in the scientific community because of the advantages of this class of device. It is known that MR dampers can generate high damping forces with low energy requirements and low cost of production. However, the complex dynamics that characterize MR dampers make difficult the control design for achieving the vibration reduction goals in an efficient manner. In this article, a semiactive controller based on the backstepping technique is proposed. The controller was applied to a three-story building with an MR damper at its first floor subjected to seismic motions. The performance of the controller was evaluated experimentally by means of real time hybrid testing.

Original languageEnglish (US)
Pages (from-to)2037-2053
Number of pages17
JournalJournal of Intelligent Material Systems and Structures
Volume20
Issue number17
DOIs
StatePublished - Nov 1 2009
Externally publishedYes

Keywords

  • Magnetorheological damper
  • Semiactive control
  • Smart structures
  • Vibration reduction

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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