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发布时间：2019-03-12

论文类型：期刊论文

发表时间：2017-04-01

发表刊物：COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING

收录刊物：EI、SCIE

卷号：32

期号：4

页面范围：304-318

ISSN号：1093-9687

摘要：This work proposes an efficient and reliable method for damage localization in truss structures. The damage is localized on the basis of measured acceleration signals of the structure followed by simple statistical signal processing. It has three main advantages over many existing methods. First, it can be directly applied to real engineering structures without the need of identifying modal parameters or solving any global optimization problem. Second, the proposed method has higher sensitivity to damage than some other frequently used methods and allows to localize damage as small as a few percentages. Third, it is a model-freemethod, which does not require precise finite element model development or updating. Validation of the method has been conducted on numerical examples and laboratory-scale trusses. Two types of frequently used trusses have been selected for this study, namely, Howe and Bailey trusses. The presented experimental validation of the method shows its efficiency and robustness for damage localization in truss structures.