基于信息融合技术的结构损伤检测方法  

Structural damage detection method based on information fusion

作　　者：井立 杨智春[1] 张甲奇[2] JING Li;YANG Zhichun;ZHANG Jiaqi(School of Aeronautics,Northwestern Polytechnic University,Xi’an 710072,China;Chinese Flight Test Establishment,Xi’an 710089,China)

机构地区：[1]西北工业大学航空学院,西安710072 [2]中国飞行试验研究院飞机所,西安710089

出　　处：《振动与冲击》2018年第7期91-95,101,共6页Journal of Vibration and Shock

基　　金：高等学校学科创新引智计划资助项目(B07050);国家自然科学基金资助项目(11402205)

摘　　要：在结构损伤检测领域,不同的损伤检测方法对结构的损伤敏感程度不同,为了提高结构损伤检测的准确率,将信息融合技术应用在结构损伤检测中。利用加权平均法、简单投票法和D-S证据理论在不同层次进行信息融合,得到结构的损伤状态;通过蜂窝夹层复合材料梁损伤检测试验验证该方法的可行性和有效性。结果表明所提出的方法可以准确的判断结构是否发生损伤以及损伤的位置。In the field of structural damage detection,different damage detection methods have different sensitive level to structural damage.In order to improve the accuracy of structural damage detection,information fusion technology was used in structural damage detection here.Using the weighted average method,the simply voting method and the D-S evidence theory,information was fused at different levels,structural damage state was obtained.The feasibility and effectiveness of the proposed method were verified using honeycomb sandwich composite beams damage detection tests.The results showed that the proposed method can accurately figure out if structural damage happens and structural damage’s position.

关 键 词：结构损伤检测 信息融合 D-S证据理论 

分 类 号：TB123[理学—工程力学]