Structural Damage Detection and Localization Using Response Difference Transmissibility  

作　　者：WANG Zengwei DING Lei 王增伟;丁雷

机构地区：[1]Shanghai Institute of Technical Physics,Key Laboratory of Infrared System Detection and Imaging Technology,Chinese Academy of Sciences,Shanghai 200083,China

出　　处：《Journal of Shanghai Jiaotong university(Science)》2024年第6期1126-1138,共13页上海交通大学学报(英文版)

基　　金：the National Natural Science Foundation of China(Nos.12141305 and 11902191);the National Key R&D Program of China(Nos.2021YFB3901000 and 2021YFB3901004);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA15021003)。

摘　　要：In this paper,a novel method is proposed for structural damage detection and localization.The key of the proposed method is the use of the response difference transmissibility(RDT)for damage localization.The RDT is defined to relate response differences of the system to be evaluated and those of the original system.The invariance properties of RDT are also investigated.Based on this,a damage indicator is proposed,and the benefits are verified by a numerical example.Finally,the proposed method is illustrated and validated by finite element simulations and experimental case studies.

关 键 词：damage detection damage localization TRANSMISSIBILITY mechanical vibrations 

分 类 号：V19[航空宇航科学与技术—人机与环境工程]