|本期目录/Table of Contents|

[1]顾建祖,郝文峰,骆英,等.基于固有模态函数振动传递率的结构损伤识别[J].建筑科学与工程学报,2011,28(01):27-32.
　GU Jian-zu,HAO Wen-feng,LUO Ying,et al.Structural Damage Identification Based on Intrinsic Mode Function Vibration Transmissibility[J].Journal of Architecture and Civil Engineering,2011,28(01):27-32.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
28卷
期数:
2011年01期
页码:
27-32
栏目:
出版日期:
2011-03-20

文章信息/Info

Title:
Structural Damage Identification Based on Intrinsic Mode Function Vibration Transmissibility
作者:
顾建祖,郝文峰,骆英,汤灿
江苏大学 机械工业机械结构损伤检测评估技术重点实验室,江苏 镇江 212013
Author(s):
GU Jian-zu, HAO Wen-feng, LUO Ying, TANG Can
Chinese Machinery Industry Key Laboratory for Mechanical Structure Damage Detection Technology, Jiangsu University, Zhenjiang 212013, Jiangsu, China
关键词:
经验模态分解;  固有模态函数;  振动传递率;  损伤识别;  玻璃幕墙
Keywords:
empirical mode decomposition;  intrinsic mode function;  vibration transmissibility;  damage identification;  glass curtain wall
分类号:
TU311.3
DOI:
-
文献标志码:
A
摘要:
提出了无需量测外荷载的新的结构损伤识别方法,将经验模态分解应用于结构损伤识别,通过求振动响应信号固有模态函数的振动传递率,构建结构损伤识别参数; 通过对预置不同开胶损伤程度的玻璃幕墙试件进行动态测试,得到不同损伤程度下玻璃幕墙的固有模态函数振动传递率,并根据振动传递率的差别来识别和评估玻璃幕墙开胶损伤程度。研究结果表明:与传统方法相比,该方法无需量测外荷载也能精确识别结构损伤,通过损伤参数值也能判断损伤大小。
Abstract:
A novel structural damage identification method without excitation measurement was proposed. Empirical mode decomposition(EMD)was applied to structural damage identification. Through seeking the vibration transmissibility of vibration response signal intrinsic mode function(IMF), a set of structural damage identification parameters were constructed. Through the dynamic testing on different pre-damage degrees of glass curtain walls, the intrinsic mode function vibration transmissibilities under different damage degrees were got in terms of the differences of vibration transmissibility to identify and assess the damage degrees of glass curtain walls. Study results show that compared with traditional methods, this method can accurately identify the structural damage without excitation measurement. The severity of damage can be assessed through the damage parameter values.

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相似文献/References:

[1]程磊,瞿伟廉.基于Hilbert-Huang变换理论的非平稳数据处理[J].建筑科学与工程学报,2007,24(01):26.
　CHENG Lei,QU Wei-lian.Non-stationary Data Processing Based on Hilbert-Huang Transform Theory[J].Journal of Architecture and Civil Engineering,2007,24(01):26.

备注/Memo

备注/Memo:
收稿日期:2010-12-05
基金项目:国家自然科学基金项目(10672068); 国家自然科学基金项目(50875114); 建设部研究开发项目(2008K322)
作者简介:顾建祖(1961-),男,江苏常熟人,副教授,E-mail:gujianzu@ujs.edu.cn。
更新日期/Last Update: 2011-03-20