Variable gain feedback control of a high-rise building-elevator system adjusted to ground motion intensity and response level

Nanako Miura, Masayuki Kohiyama

Research output: Contribution to journalArticle

Abstract

A control method is proposed based on frequency shaped LQG and variable gain feedback in order to choose proper control objective and prevent saturation of control force considering intensity of ground motion and level of building response. The controller examines exceedance rate of building response over a threshold and the maximum required control force estimated from ground acceleration in order to reduce response of both a building and elevator rope efficiently preventing saturation. It is demonstrated that the proposed method can suppress unpreferable response of building layers near the top induced by control force.

Original languageEnglish
Pages (from-to)2069-2076
Number of pages8
JournalJournal of Structural and Construction Engineering
Volume76
Issue number670
DOIs
Publication statusPublished - 2011 Dec

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Elevators
Gain control
Force control
Feedback control
Feedback
Controllers

Keywords

  • Building and elevator system
  • High-rise building
  • Seismic response
  • Variable gain control
  • Vibration control

ASJC Scopus subject areas

  • Building and Construction
  • Architecture

Cite this

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AB - A control method is proposed based on frequency shaped LQG and variable gain feedback in order to choose proper control objective and prevent saturation of control force considering intensity of ground motion and level of building response. The controller examines exceedance rate of building response over a threshold and the maximum required control force estimated from ground acceleration in order to reduce response of both a building and elevator rope efficiently preventing saturation. It is demonstrated that the proposed method can suppress unpreferable response of building layers near the top induced by control force.

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