A STUDY ON STRUCTURAL DAMAGE DETECTION METHOD BASED ON MODEL UPDATING

被引：0

作者：

Yang, Haifeng ^{[1
]}

Wu, Ziyan ^{[1
]}

Yan, Yunju ^{[1
]}

机构：

[1] NW Polytech Univ, Sch Mech Civil & Architecture, Xian 710072, Peoples R China

来源：

PROCEEDINGS OF THE 2009 2ND INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING, VOLS 1-9 | 2009年

关键词：

structural damage detection; acceleration frequency response function; model updating;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

This paper presents a new method to measure the location and degree of structural damage based on model updating. The method can refine dynamic model's stiffness matrix by using a subset vectors from the full set of acceleration frequency response functions that are extracted from test data and calculated from an updating finite element model. As a result, acceleration frequency response functions obtained from the updated analytical model are coinciding with those measured. The location and degree of structural damage can be found through the deviation. The method has definite physical meaning, avoid modal analysis, and can come into being the online monitor system. One numerical example checks the method ' s validity and precision.

引用

页码：4396 / 4400

页数：5

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