Experiments for damage location in a damped structure

Suzanne Weaver Smith, David C. Zimmerman, Theodore J. Bartkowicz, Hyoung M. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this paper, we present the results of an investigation of significant damping effects and the ability to locate damage. A three-bay, vertically cantilevered laboratory truss testbed was developed to exhibit beam-like response for the first three modes (a pair of first bending modes in orthogonal directions and a torsional mode). Truss members were removed from the testbed to simulate various damage scenarios with reduced stiffness. In addition, up to four visco-elastic damping struts were placed in the truss testbed in various configurations to affect the damping of certain modes of the structure. A comprehensive test matrix of damping and damage effects was designed and completed to construct the data base for the damping and damage identification evaluations. Two representative visco-elastic struts were also tested individually to determine their stiffness and damping characteristics. The damage detection process used the differences between pre- and post-damage vibration characteristics, along with a structural model, to successfully locate and quantify the extent of structural damage in all cases. Damping matrix models were also identified and evaluated.

Original languageEnglish
Title of host publication16th Biennial Conference on Mechanical Vibration and Noise
ISBN (Electronic)9780791880432
StatePublished - 1997
EventASME 1997 Design Engineering Technical Conferences, DETC 1997 - Sacramento, United States
Duration: Sep 14 1997Sep 17 1997

Publication series

NameProceedings of the ASME Design Engineering Technical Conference


ConferenceASME 1997 Design Engineering Technical Conferences, DETC 1997
Country/TerritoryUnited States

Bibliographical note

Funding Information:
The first two authors efforts were partially supported by McDonnell Douglas Aerospace, Houston, TX. The authors would like to thank Alex Chapman, a University of Kentucky undergraduate student, for his work in testing the truss and performing the modal identification. The authors also acknowledge the work of Raul Blanco, a University of Houston Masters student, who performed the individual strut tests and analysis.

Publisher Copyright:
© 1997 American Society of Mechanical Engineers (ASME). All rights reserved.

Copyright 2021 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • Mechanical Engineering
  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Modeling and Simulation


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