Model updating based on a substructuring method

被引：0

作者：

Weng S. ^{[1
]}

Zuo Y. ^{[1
]}

Zhu H. ^{[1
]}

Chen B. ^{[2
]}

Zhao H. ^{[1
]}

Tian W. ^{[1
]}

Yan Y. ^{[1
]}

机构：

[1] School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan

[2] School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2017年 / 36卷 / 04期

关键词：

Damage identification; Eigensensitivity; Eigensolution; Model updating; Substructure;

D O I：

10.13465/j.cnki.jvs.2017.04.016

中图分类号：

学科分类号：

摘要：

This paper proposes a substructure-based model updating method. The global structure was divided into independent manageable substructures, which were analyzed to calculate the substructural eigensolutions and eigensensitivity. Afterwards, the independent substructures were constrained to calculate the eigensolutions and eigensensitivity of the global structure. Finally, the eigensolutions were used for the objective function and the eigensensitivity was used to indicate the searching direction to achieve the model updating. When the local area of a structure was changed, only one or more substructures were analyzed whereas the other substructures were untouched. Since the substructures were much smaller than the global structure, the proposed method significantly improved the accuracy and efficiency of the model updating process. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：99 / 104and138

共 17 条

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