[1]王凤刚,凌贤长,徐训,等.基于全量补偿算法的结构损伤识别[J].哈尔滨工程大学学报,2014,(12):1519-1523.[doi:10.3969/j.issn.1006-7043.201308018]
 WANG Fenggang,LING Xianzhang,XU Xun,et al.Damage identification of a structure based on the total compensation method[J].hebgcdxxb,2014,(12):1519-1523.[doi:10.3969/j.issn.1006-7043.201308018]
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基于全量补偿算法的结构损伤识别
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2014年12期
页码:
1519-1523
栏目:
出版日期:
2014-12-25

文章信息/Info

Title:
Damage identification of a structure based on the total compensation method
作者:
王凤刚1 凌贤长12 徐训1 张锋1 赵莹莹1
1. 哈尔滨工业大学 土木工程学院, 黑龙江 哈尔滨 150090;
2. 中国科学院寒区旱区环境与工程研究所 冻土工程国家重点实验室, 甘肃 兰州 730000
Author(s):
WANG Fenggang1 LING Xianzhang12 XU Xun1 ZHANG Feng1 ZHAO Yingying1
1. Civil Engineering Department, Harbin Institute of Technology, Harbin 150090, China;
2. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, China Academy of Sciences, Lanzhou 730000, China
关键词:
补偿算法损伤识别频率振型模态参数损伤因子归一化
分类号:
TU435;TU317
DOI:
10.3969/j.issn.1006-7043.201308018
文献标志码:
A
摘要:
频率和振型是反应结构动力特性的主要模态参数,文中对损伤结构的频率和振型进行了研究。通过实测损伤结构的频率和振型,利用矩阵理论修正理论有限元模型,使之与实测损伤结构的频率和振型一致;将修正的理论有限元模型表达成单元刚度矩阵与损伤因子的线性组合,把损伤识别问题转化为组合系数的识别问题。给定损伤因子的合理取值范围,用优化方法求解损伤因子。通过对十跨桁架结构的数值仿真,仅用结构的前5阶频率和振型就能很好的识别结构的损伤,且该方法不需要对实测振型进行归一化处理,具有较强的实用性。

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备注/Memo

备注/Memo:
收稿日期:2013-8-9;改回日期:。
基金项目:国家自然科学基金资助项目(51174261,51078111).
作者简介:王凤刚(1975-),男,博士研究生;凌贤长(1963-),男,教授,博士生导师.
通讯作者:王凤刚,E-mail:wang_fenggang@163.com.
更新日期/Last Update: 2015-06-19