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M. Caretto, A. Messina, N.I. Giannoccaro, "Application of a Bounded-Variable Least-Squares Algorithm for Damage Detection based on Natural Frequencies Changes", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 124, 2014. doi:10.4203/ccp.106.124

Keywords: damage detection, modal analysis, structural dynamics, finite element, inverse problem, constrained least-square algorithms..

Summary

The aim of this paper is to test the validity of a bounded variable least-squares (BVLS) algorithm in solving the problem of detecting the location and the extent of potential damaged sites in elastic structures by using the changes in their natural frequencies. In the work, described in this paper, the BVLS algorithm has been implemented and then tested as a new tool for identifying and quantifying damaged sites on the finite element model of a one side clamped beam. Several tests are illustrated evaluating the performances of this innovative approach in comparison with the NNLS and MDLAC algorithms in different conditions (including different extents of damage, different numbers and locations of damaged sites and different numbers of discretization elements). The results have been presented and discussed enabling the field of applicability to be clarified, the improvements and the limits of this new procedure in comparison with the established techniques.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 124 Application of a Bounded-Variable Least-Squares Algorithm for Damage Detection based on Natural Frequencies Changes M. Caretto, A. Messina and N.I. Giannoccaro Dipartimento di Ingegneria dell'Innovazione, Università del Salento, Lecce, Italy doi:10.4203/ccp.106.124 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Caretto, A. Messina, N.I. Giannoccaro, "Application of a Bounded-Variable Least-Squares Algorithm for Damage Detection based on Natural Frequencies Changes", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 124, 2014. doi:10.4203/ccp.106.124 Keywords: damage detection, modal analysis, structural dynamics, finite element, inverse problem, constrained least-square algorithms.. Summary The aim of this paper is to test the validity of a bounded variable least-squares (BVLS) algorithm in solving the problem of detecting the location and the extent of potential damaged sites in elastic structures by using the changes in their natural frequencies. In the work, described in this paper, the BVLS algorithm has been implemented and then tested as a new tool for identifying and quantifying damaged sites on the finite element model of a one side clamped beam. Several tests are illustrated evaluating the performances of this innovative approach in comparison with the NNLS and MDLAC algorithms in different conditions (including different extents of damage, different numbers and locations of damaged sites and different numbers of discretization elements). The results have been presented and discussed enabling the field of applicability to be clarified, the improvements and the limits of this new procedure in comparison with the established techniques. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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