Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/97540
Type: Artigo de evento
Title: Improved Subspace-based Method Applied To Structural Damage Detection
Author: Inocente-Junior N.R.
Nobrega E.G.O.
Mechbal N.
Abstract: Precise and automatic identification of structural properties is a vital step toward detection and localization of damage in structures. However, even simple structures may present a complex dynamical behavior, and a large number of poles for a given frequency interval. This complexity leads often to numerical problems, like spurious modes in the identified model. In this article it is proposed a novel frequency-windowed subspace identification method, suitable to perform reduced-order identification, using band-limited excitation. The proposed methodology is employed to identify natural frequencies and damage detection of an experimental bench. Experimental results show its effectiveness to improve model identification. It is also shown that the frequency-windowing subspace identification is able to enhance damage detection, by generating more accurate damage indexes. © 2012 IFAC.
Editor: 
Rights: fechado
Identifier DOI: 10.3182/20120829-3-MX-2028.00046
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84867063837&partnerID=40&md5=b9916c5bfa133c92d47754261ab0ae58
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.