Application of active base isolation control

Chia Ming Chang, Zhihao Wang, B F Spencer

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

Abstract

The structural control can provide the potential protection through passive and active control techniques. Structures with base isolations have been successfully implemented and proven effective in the vibration mitigation. To enhance the functionality of base isolations, a hybrid control system can be considered using a combination with active control devices. This research applies the hybrid control technique to a three-story two-bay steel building. The base isolation is installed under the structural base, and three actuators are placed at the lowest level. The control objective is to reduce the structural responses in the motion of three directions. First, the control system has been identified through the proposed system identification technique and considered with the control-structure interaction. Different controllers are designed to examine the performance under different types of excitation. Finally, this control system is tested on the shake table for evaluation of the controllers, and the two-dimensional control strategy is also realized through the whole procedures.

Original languageEnglish (US)
Title of host publicationSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009
EditionPART 1
DOIs
StatePublished - Dec 1 2009
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009 - San Diego, CA, United States
Duration: Mar 9 2009Mar 12 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
NumberPART 1
Volume7292
ISSN (Print)0277-786X

Other

OtherSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009
CountryUnited States
CitySan Diego, CA
Period3/9/093/12/09

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Keywords

  • Base isolation
  • Control-structure interaction
  • LQG control algorithm
  • Structural control
  • System identification

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Chang, C. M., Wang, Z., & Spencer, B. F. (2009). Application of active base isolation control. In Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009 (PART 1 ed.). [729239] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7292, No. PART 1). https://doi.org/10.1117/12.821827