LQG design scheme for multiple vibration controllers in a data center facility

Masayuki Kohiyama, Minako Yoshida

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This study proposes a scheme to design control parameters for a data center facility with a vibration controller on its top floor and a secondary isolation device with its own vibration controller designed to protect vibration-sensitive computer equipment. The aim is to reduce the effects of acceleration and drift from an earthquake on computer servers placed on the isolation device that must operate during a seismic event. A linear elastic model is constructed and the evaluation function of the linear quadratic Gaussian (LQG) control is formulated. The relationship between the control parameters and the responses is examined, and based on the observations, a control parameter design scheme is constructed to reduce the responses of both the building and the computer server effectively.

Original languageEnglish
Pages (from-to)281-300
Number of pages20
JournalEarthquake and Structures
Issue number3
Publication statusPublished - 2014 Mar


  • Computer center
  • Function maintenance
  • Isolation floor
  • Vibration control

ASJC Scopus subject areas

  • Civil and Structural Engineering


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