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论文类型：期刊论文

发表时间：2013-09-01

发表刊物：SMART STRUCTURES AND SYSTEMS

收录刊物：SCIE、Scopus

卷号：12

期号：3-4,SI

页面范围：235-250

ISSN号：1738-1584

关键字：optimal sensor placement; effective independence method; Canton Tower; sensitivity; robustness

摘要：Optimal sensor placement (OSP) technique plays a key role in the structural health monitoring (SHM) of large-scale structures. According to the mathematical background and implicit assumptions made in the triaxial effective independence (EfI) method, this paper presents a novel multi-dimensional OSP method for the Canton Tower focusing on application demands. In contrast to existing methods, the presented method renders the corresponding target mode shape partitions as linearly independent as possible and, at the same time, maintains the stability of the modal matrix in the iteration process. The modal assurance criterion (MAC), determinant of the Fisher Information Matrix (FIM) and condition number of the FIM have been taken as the optimal criteria, respectively, to demonstrate the feasibility and effectiveness of the proposed method. Numerical investigations suggest that the proposed method outperforms the original EfI method in all instances as expected, which is looked forward to be even more pronounced should it be used for other multi-dimensional optimization problems.