Effect of active control on closely spaced natural frequencies

K. Xu, P. Warnitchai, T. Igusa

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


Current problems in structural control involve structures with closely spaced natural frequencies (M.J. Balas, 1983). The purpose of this paper is to show how control affects a structure with closely spaced natural frequencies. To develop clear and concrete results, the fundamental case of a structure with only two modes with a single, scalar control input is examined. This demonstrates the effectiveness and limitations of using a single control for two nodes. The following three control algorithms are used: velocity feedback, pole allocation, and optimal control.

Original languageEnglish (US)
Title of host publicationProceedings of Engineering Mechanics
PublisherPubl by ASCE
Number of pages4
ISBN (Print)0872628671
StatePublished - Jan 1 1992
Externally publishedYes
EventProceedings of the 9th Conference on Engineering Mechanics - College Station, TX, USA
Duration: May 24 1992May 27 1992

Publication series

NameProceedings of Engineering Mechanics


OtherProceedings of the 9th Conference on Engineering Mechanics
CityCollege Station, TX, USA

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture


Dive into the research topics of 'Effect of active control on closely spaced natural frequencies'. Together they form a unique fingerprint.

Cite this