期刊
ADVANCES IN ENGINEERING SOFTWARE
卷 50, 期 -, 页码 150-157出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.advengsoft.2012.02.002
关键词
Dynamic parameters; Damage detection; Genetic algorithms; Truss structures; Self-adaptation; Multi-chromosome
类别
资金
- CNPq (Brazilian National Council for Technological and Scientific Development)
This paper presents a structural damage detection methodology based on genetic algorithms and dynamic parameters. Three chromosomes are used to codify an individual in the population. The first and second chromosomes locate and quantify damage, respectively. The third permits the self-adaptation of the genetic parameters. The natural frequencies and mode shapes are used to formulate the objective function. A numerical analysis was performed for several truss structures under different damage scenarios. The results have shown that the methodology can reliably identify damage scenarios using noisy measurements and that it results in only a few misidentified elements. (C) 2012 Civil-Comp Ltd and Elsevier Ltd. All rights reserved.
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