东南大学学报（英文版）2008，Vol.24Issue(2)：201-205,5.
基于信息融合技术的结构损伤诊断方法
Structural damage detection method based on information fusion technique
摘要
Abstract
Multi-source information fusion (MSIF) is importedinto structural damage diagnosis methods to improve the validityof damage detection. After the introduction of the basic theory,the function model, classifications and mathematical methods ofMSIF, a structural damage detection method based on MSIF ispresented, which is to fuse two or more damage character vectorsfrom different structural damage diagnosis methods on thecharacter-level. In an experiment of concrete plates, modalinformation is measured and analyzed. The structural damagedetection method based on MSIF is taken to localize cracks ofconcrete plates and it is proved to be effective. Results of damagedetection by the method based on MSIF are compared with thosefrom the modal strain energy method and the flexibility method.Damage, which can hardly be detected by using the singledamage identification method, can be diagnosed by the damagedetection method based on the character-level MSIF technique.Meanwhile multi-location damage can be identified by themethod based on MSIF. This method is sensitive to structuraldamage and different mathematical methods for MSIF havedifferent preconditions and applicabilities for diversifiedstructures. How to choose mathematical methods for MSIF shouldbe discussed in detail in health monitoring systems of actualstructures.关键词
多源信息融合/结构损伤诊断/Bayes方法/D-S证据理论Key words
multi-source information fusion/ structural damagedetection/ Bayes method/ D-S evidence theory分类
建筑与水利引用本文复制引用
刘涛,李爱群,丁幼亮,费庆国..基于信息融合技术的结构损伤诊断方法[J].东南大学学报（英文版）,2008,24(2):201-205,5.基金项目
The National High Technology Research and Develop-ment 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). （863 Program）
