Identification of structural damage using dynamic input-output measurements

被引：0

作者：

Betti, Raimondo ^{[1
]}

Lus, Hilmi ^{[1
]}

Franco, Guillermo ^{[1
]}

Imbimbo, Maura ^{[1
]}

Yu, Jun ^{[1
]}

机构：

[1] Columbia Univ, Dept Civil Engn & Engn Mech, New York, NY 10027 USA

来源：

SMART STRUCTURES AND MATERIALS 2006: SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL , AND AEROSPACE SYSTEMS, PTS 1 AND 2 | 2006年 / 6174卷

关键词：

system identification; damage detection; ERA; partial instrumentation; evolution strategies;

D O I：

10.1117/12.667152

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This paper presents a variety of methodologies that are used to detect the location and amount of structural damage using dynamic measurements of the input and of the structural response. One approach (and its variations) starts from an identified first order model of a structural system and obtain estimation of the structure's mass, damping and stiffness matrices. For these approaches, both the full instrumentation option and the partial instrumentation option are presented. An alternative approach for the identification of the dynamic characteristics of the structure is based on Evolution Strategies. Once these dynamic characteristics have been determined, structural damage is assessed by comparing the undamaged and damaged estimation of such parameters. Both these methodologies are tested on simulated numerical results and their effectiveness in determining structural damage is evaluated.

引用

页数：11

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