Full Content is available to subscribers

Subscribe/Learn More  >

A Modified Continuous Reactive Tabu Search for Damage Detection in Beams

[+] Author Affiliations
Mustafa Arafa, Ashraf Nassef

American University in Cairo, Cairo, Egypt

Ayman Youssef

Cairo University, Cairo, Egypt

Paper No. DETC2010-28389, pp. 1161-1169; 9 pages
  • ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 1: 36th Design Automation Conference, Parts A and B
  • Montreal, Quebec, Canada, August 15–18, 2010
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4409-0 | eISBN: 978-0-7918-3881-5
  • Copyright © 2010 by ASME


The use of vibration-based techniques in damage identification has recently received considerable attention in many engineering disciplines. While various damage indicators have been proposed in the literature, those relying only on changes in the natural frequencies are quite appealing since these quantities can conveniently be acquired. The identification of damage involves an optimization step where response of a continuously updated finite elements model (FEM) is compared with the response of the experimental measurements and error between both responses is minimized. In this paper it is shown that such error function is highly multi-modal and that the same response can be obtained by more than one damage scenario. In order to find these optima a hybrid optimization approach is developed which utilizes two components; namely. Modified Continuous Reactive Tabu Search (MCRTS) and Real Coded Genetic Algorithms. MCRTS, the primary component, is a meta-heuristic capable of finding several optima in a multi-modal search space, which suites the nature of the problem at hand. GAs, the secondary component, although a global optimizer, is used as a local optimizer that is fired in promising regions of the search space as identified by the major component (MCRTS). It is used in favor of direct search methods to account for the presence of minor local optima. In order to test the algorithm, several beams are manufactured and crack damages are induced using wire-cutting, and the natural frequencies are tested experimentally. Such beams have two locations that can give the same response. The developed algorithm managed to find the two sought-for optima consistently in several runs. This proves the merit of this approach as being capable of handling the problem at hand.

Copyright © 2010 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In