文献类型：期刊文献

英文题名：Multiple-damage detection using the best achievable flexibility change

作者：Yang, Q. W.[1];Liu, J. K.[2];Li, C. H.[1]

机构：[1]Shaoxing Univ, Dept Civil Engn, Shaoxing 312000, Peoples R China;[2]Zhongshan Univ, Dept Mech, Guangzhou 510275, Guangdong, Peoples R China

年份：2013

卷号：91

期号：4

起止页码：313

外文期刊名：CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES

收录：SCI-EXPANDED(收录号：WOS:000323091100004)、、EI(收录号：20132816479841)、Scopus(收录号：2-s2.0-84879623881)、WOS

基金：This work is supported by National Natural Science Foundation of China (11202138, 10772202, 10972241), Zhejiang Province Natural Science Foundation (Y1110949), the scientific research project of Shaoxing City (2010A23006), Doctoral Program Foundation of Ministry of Education of China (20090171110042), Guangdong Province Natural Science Foundation (9151027501000014), and the Guangdong Province Science and Technology Program (2009B030803038).

语种：英文

外文关键词：damage detection; flexibility change; best achievable; multiple damages

外文摘要：A method based on best achievable flexibility change is presented in this paper to localize and quantify multiple damages in structures. The key process of the damage localization approach is the computation of the Euclidean distances between the measured flexibility change and the best achievable flexibility changes. The location of damage can be identified by searching for a value that is considerably smaller than others in these distances. For the multiple-damage case, a sequential damage localization approach is proposed to locate the damage sites one by one. With the suspected damaged elements determined, the flexibility sensitivity method is employed to calculate the damage extents. Three numerical examples are used to demonstrate the efficiency of the method. Results show the good efficiency and stability of the presented method on the identification of single damage or multiple damages.