文献类型：期刊文献

英文题名：A new damage identification method based on structural flexibility disassembly

作者：Yang, Q.W.[1]

机构：[1]Shaoxing Univ, Dept Civil Engn, Shaoxing, Peoples R China

年份：2011

卷号：17

期号：7

起止页码：1000

外文期刊名：JOURNAL OF VIBRATION AND CONTROL

收录：SCI-EXPANDED(收录号：WOS:000291007600004)、、EI(收录号：20113714329815)、Scopus(收录号：2-s2.0-80052638763)、WOS

语种：英文

外文关键词：Damage identification; flexibility disassembly; flexibility perturbation parameter; mode; stiffness perturbation parameter

外文摘要：This paper presented a new method for structural damage identification based on flexibility disassembly. The basic idea of the developed theory is to decompose a structural flexibility matrix into a matrix representation of the connectivity between degrees-of-freedom and a diagonal matrix containing the magnitude information. Using the flexibility disassembly, a new damage detection scheme is presented to approach the damage identification problem in three steps. The scheme has a unique advantage that it can accurately compute the stiffness perturbation parameter without any higher-order sensitivity analysis or iteration. The efficiency of the proposed method is demonstrated by five numerical examples.