Real-time hybrid testing of a semi-actively controlled structure with an MR damper

Juan E. Carrion, B. F. Spencer, Brian M. Phillips

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Real-time hybrid testing is an attractive method to evaluate the response of structures under earthquake loads. The method is a variation of the pseudodynamic testing technique in which the experiment is executed in real time, thus allowing investigation of structural systems with ratedependent components. Real-time hybrid testing is challenging because it requires performance of all calculations, application of displacements, and acquisition of measured forces, within a very small increment of time. Furthermore, unless appropriate compensation for actuator dynamics is implemented, stability problems are likely to occur during the experiment. This paper presents an approach for real-time hybrid testing in which compensation for actuator dynamics is implemented using a model-based feedforward-feedback compensator. The method is used to evaluate the response of a semi-active control of a structure employing an MR damper. Experimental results show good agreement with the predicted responses, demonstrating the effectiveness of the method to test ratedependent and semi-active components.

Original languageEnglish (US)
Title of host publication2009 American Control Conference, ACC 2009
Pages5234-5240
Number of pages7
DOIs
StatePublished - Nov 23 2009
Event2009 American Control Conference, ACC 2009 - St. Louis, MO, United States
Duration: Jun 10 2009Jun 12 2009

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2009 American Control Conference, ACC 2009
CountryUnited States
CitySt. Louis, MO
Period6/10/096/12/09

Keywords

  • MR damper
  • Real-time hybrid testing
  • Semi-active control

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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