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基于改进模态柔度曲率差的结构损伤识别方法

马立元 李世龙 王天辉 王钢

现代制造工程Issue(3):136-141,6.
现代制造工程Issue(3):136-141,6.

基于改进模态柔度曲率差的结构损伤识别方法

Research on damage detection method based on improved modal flexibility-curvature and difference

马立元 1李世龙 1王天辉 1王钢2

作者信息

  • 1. 军械工程学院四系,石家庄050003
  • 2. 66440部队,石家庄050003
  • 折叠

摘要

Abstract

Aim to improve the question of illegibility detection and inaccuracy orientation ,a new damage detection method named by gray relation Modal Flexibility Curvature Difference ( GMFCD) is proposed by combining the gray system theory with modal flexibility method.The damage determination methods have been proposed based on first-order sensitivity formula.The flexibility is changed to improve the effect of noise .The indicator is used in a straight pipe .Compared with the flexibility differential curva-ture method,the effectiveness and advantage of GMFCD are proven by means of numerical simulation and experimentation .

关键词

损伤识别/柔度矩阵/模态柔度曲率差/灰并联

Key words

damage identification/flexibility matrix/Modal Flexibility Curvature Difference ( MFCD)/gray relation

分类

建筑与水利

引用本文复制引用

马立元,李世龙,王天辉,王钢..基于改进模态柔度曲率差的结构损伤识别方法[J].现代制造工程,2015,(3):136-141,6.

现代制造工程

OA北大核心CSCDCSTPCD

1671-3133

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