System identification of buildings equipped with closed-loop control devices

Akira Mita, Masako Kamibayashi

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

Abstract

The purpose of this study is to provide a system identification tool to obtain dynamic structural properties of buildings when closed-loop control devices are in operation so that we will be able to detect possible damages or changes in the building structures without suspending the control devices. The difficulty associated with closed-loop systems, where noise, input and output signals are correlated, can be resolved using the output over-sampling approach. Using the approach, we were able to successfully obtain the open-loop properties of the building structures even when the control device is operated. Until now, it has been a common practice to temporarily suspend the closed-loop control circuits to measure the properties of the building without the influence of the control device. The control device is used as an exciter for the building structure with no feedback to the device. However, the true dynamic properties of the building when subject to control forces generated by the control devices that are operated as closed-loop systems may be different from those neglecting the control force. Thus, the output over-sampling approach was employed to overcome these difficulties. The employed approach was indeed able to estimate the properties of the building when the AMD, that is a typical vibration control device, is in operation under the condition that the control system can hold its control signal for the sampling period T.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsM. Tomizuka
Pages741-748
Number of pages8
Volume5765
EditionPART 2
DOIs
Publication statusPublished - 2005
EventSmart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems - San Diego, CA, United States
Duration: 2005 Mar 72005 Mar 10

Other

OtherSmart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems
CountryUnited States
CitySan Diego, CA
Period05/3/705/3/10

Fingerprint

control equipment
system identification
Identification (control systems)
sampling
feedback control
Force control
Sampling
output
Closed loop systems
dynamic structural analysis
Vibration control
dynamic characteristics
Structural properties
damage
vibration
Feedback
Control systems
estimates
Networks (circuits)

Keywords

  • Closed-loop
  • Damage detection
  • Structural control
  • System identification

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Mita, A., & Kamibayashi, M. (2005). System identification of buildings equipped with closed-loop control devices. In M. Tomizuka (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (PART 2 ed., Vol. 5765, pp. 741-748). [79] https://doi.org/10.1117/12.599334

System identification of buildings equipped with closed-loop control devices. / Mita, Akira; Kamibayashi, Masako.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / M. Tomizuka. Vol. 5765 PART 2. ed. 2005. p. 741-748 79.

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

Mita, A & Kamibayashi, M 2005, System identification of buildings equipped with closed-loop control devices. in M Tomizuka (ed.), Proceedings of SPIE - The International Society for Optical Engineering. PART 2 edn, vol. 5765, 79, pp. 741-748, Smart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, CA, United States, 05/3/7. https://doi.org/10.1117/12.599334
Mita A, Kamibayashi M. System identification of buildings equipped with closed-loop control devices. In Tomizuka M, editor, Proceedings of SPIE - The International Society for Optical Engineering. PART 2 ed. Vol. 5765. 2005. p. 741-748. 79 https://doi.org/10.1117/12.599334
Mita, Akira ; Kamibayashi, Masako. / System identification of buildings equipped with closed-loop control devices. Proceedings of SPIE - The International Society for Optical Engineering. editor / M. Tomizuka. Vol. 5765 PART 2. ed. 2005. pp. 741-748
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