Active control of large structures using a bilinear pole-shifting transform with H control method

Wonsuk Park, Kwan Soon Park, Hyun Moo Koh

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

A bilinear pole-shifting technique with H control method is proposed for the dynamic response control of large structures. The proposed control method is a direct pole-placing design approach which can make the structural systems have a certain target damping ratio. The performance requirement is considered as a target damping ratio. And a bilinear transform is adopted to locate the closed-loop poles in a specific region within the H controller design framework. The relationship between the closed-loop poles and the transform parameters is derived as a quadratic form, which leads to a new non-iterative design procedure. Moreover, robust control features can be incorporated within the H robust control framework. Thus, the proposed technique effectively combines the desirable features of pole placement and H control method. To prove the validity of the proposed control method, example designs and numerical simulations of earthquake-excited ten-story buildings are performed and comparative results are presented.

Original languageEnglish
Pages (from-to)3336-3344
Number of pages9
JournalEngineering Structures
Volume30
Issue number11
DOIs
StatePublished - Nov 2008

Keywords

  • Active control
  • Bilinear pole-shifting transform
  • Dynamic response
  • H control
  • Performance requirement

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