[1] Liu Tao, Li Aiqun, Ding Youliang, Fei Qingguo, et al. Structural damage detection methodbased on information fusion technique [J]. Journal of Southeast University (English Edition), 2008, 24 (2): 201-205. [doi:10.3969/j.issn.1003-7985.2008.02.016]

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Structural damage detection methodbased on information fusion technique()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

24

Issue:

2008 2

Page:

201-205

Research Field:

Civil Engineering

Publishing date:

2008-06-03

Info

Title:

Structural damage detection methodbased on information fusion technique

Author(s):

Liu Tao;  Li Aiqun;  Ding Youliang;  Fei Qingguo

School of Civil Engineering, Southeast University, Nanjing 210096, China

Keywords:

multi-source information fusion;  structural damage detection;  Bayes method;  D-S evidence theory

PACS:

TU311.41;TB123

DOI:

10.3969/j.issn.1003-7985.2008.02.016

Abstract:

Multi-source information fusion(MSIF)is imported into structural damage diagnosis methods to improve the validity of damage detection.After the introduction of the basic theory, the function model, classifications and mathematical methods of MSIF, a structural damage detection method based on MSIF is presented, which is to fuse two or more damage character vectors from different structural damage diagnosis methods on the character-level.In an experiment of concrete plates, modal information is measured and analyzed.The structural damage detection method based on MSIF is taken to localize cracks of concrete plates and it is proved to be effective.Results of damage detection by the method based on MSIF are compared with those from the modal strain energy method and the flexibility method.Damage, which can hardly be detected by using the single damage identification method, can be diagnosed by the damage detection method based on the character-level MSIF technique.Meanwhile multi-location damage can be identified by the method based on MSIF.This method is sensitive to structural damage and different mathematical methods for MSIF have different preconditions and applicabilities for diversified structures.How to choose mathematical methods for MSIF should be discussed in detail in health monitoring systems of actual structures.

References:

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Memo

Memo:

Biographies: Liu Tao(1979—), male, graduate; Li Aiqun(corresponding author), male, doctor, professor, aiqunli@seu.edu.cn.
Foundation items: The National High Technology Research and Development Program of China(863 Program)(No. 2006AA04Z416), the National Science Fund for Distinguished Young Scholars(No. 50725828), the Excellent Dissertation Program for Doctoral Degree of Southeast University(No. 0705).
Citation: Liu Tao, Li Aiqun, Ding Youliang, et al.Structural damage detection method based on information fusion technique[J].Journal of Southeast University(English Edition), 2008, 24(2):201-205.

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