Modal coupling effect of non-classically damping

K. Xu, T. Igusa

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


The equations of motion of a structure in undamped modal coordinates may have non-zero off-diagonal terms in the damping matrix. Although these terms are commonly neglected, studies have shown that they may have significant influence on the response to dynamic loads. To quantify and understand the influence of these damping terms, closed form analytical expressions are examined for the modal properties and harmonic and stochastic response of structures with closely spaced natural frequencies.

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


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