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New type magnetorheological damper and its application on semi-active control of structural seismic response

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Magnetorheological (MR) dampers are new semi-active control devices in which the damping forces are controlled by magnetic field. These dampers are well suited for semi-active control of seismically loaded civil structures. In this study, the performance of a semi-active control system based on newly developed MR fluid damper is studied. A simple parallel plate model is used to investigate the MR damper's behavior. The comparison between the analytical and experimental results verifies the theoretical analysis of the developed MRF damper. A Three-Degree-of-Freedom (3DOF) lumped-parameter model is introduced to represent a model-scale civil structure installed with the new damper. Using this model, semi-active control method such as Continuous Sliding Mode (CSM) controller is simulated. Excellent results are obtained when this strategy is applied to control a model of a seismically excited three-story scaled building. The results clearly demonstrate that the MR damper has the potential for improving the seismic behavior of civil structures.

Original languageEnglish
Title of host publicationProcess in Safety Science and Technology Part A
EditorsH. Ping, W. Yajun, L. Shengcai, Q. Xinming, H, Ping, W. Yajun, L. Shengcai, Q. Xinming
Pages376-382
Number of pages7
StatePublished - 2002
EventProgress in Safety Science and Technology - Taian, China
Duration: 10 Oct 200213 Oct 2002

Publication series

NameProcess in Safety Science and Technology Part A
Volume3

Conference

ConferenceProgress in Safety Science and Technology
Country/TerritoryChina
CityTaian
Period10/10/0213/10/02

Keywords

  • Continuous sliding mode (CSM)
  • Magnetorheological (MR) damper
  • Parallel-plate model
  • Semi-active control

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