Discrete-time modal control for seismic structures with active bracing system

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, a shaking-table test was performed to verify a proposed discrete-time modal control method that is suitable for seismic control of structural systems and also easy for digital control implementation. The computation of the feedback gain is formulated in a discrete-time domain and is given in a concise matrix form. A method for generating the best achievable eigenvectors that are most consistent with the target values is also proposed. The test involves a full-scale three-story building model that is actively controlled by an active bracing system. The test results show that the proposed discrete-time modal control can be a very efficient and promising method for mitigating the seismic response of building structures. For the building model tested, the performance of the proposed method with only two feedback signals can be as effective as that of full state feedback control.

Original languageEnglish
Pages (from-to)369-381
Number of pages13
JournalJournal of Intelligent Material Systems and Structures
Volume12
Issue number6
DOIs
Publication statusPublished - 2001 Dec 1

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Feedback
Seismic response
State feedback
Eigenvalues and eigenfunctions
Feedback control

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering

Cite this

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abstract = "In this study, a shaking-table test was performed to verify a proposed discrete-time modal control method that is suitable for seismic control of structural systems and also easy for digital control implementation. The computation of the feedback gain is formulated in a discrete-time domain and is given in a concise matrix form. A method for generating the best achievable eigenvectors that are most consistent with the target values is also proposed. The test involves a full-scale three-story building model that is actively controlled by an active bracing system. The test results show that the proposed discrete-time modal control can be a very efficient and promising method for mitigating the seismic response of building structures. For the building model tested, the performance of the proposed method with only two feedback signals can be as effective as that of full state feedback control.",
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Discrete-time modal control for seismic structures with active bracing system. / Lu, Lyan-Ywan.

In: Journal of Intelligent Material Systems and Structures, Vol. 12, No. 6, 01.12.2001, p. 369-381.

Research output: Contribution to journalArticle

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