Localising and quantifying damage by means of a multi-chromosome genetic algorithm

被引：36

作者：

Villalba, J. D. ^{[1
]}

Laier, J. E. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Struct Engn, BR-13566590 Sao Carlos, SP, Brazil

来源：

ADVANCES IN ENGINEERING SOFTWARE | 2012年 / 50卷

关键词：

Dynamic parameters; Damage detection; Genetic algorithms; Truss structures; Self-adaptation; Multi-chromosome; PERFORMANCE;

D O I：

10.1016/j.advengsoft.2012.02.002

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

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.

引用

页码：150 / 157

页数：8

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