小波分析在土木工程结构健康监测系统中的应用研究

J4 ›› 2009, Vol. 44 ›› Issue (9): 28-31.

小波分析在土木工程结构健康监测系统中的应用研究

薛岩波杨波陈贞翔

济南大学信息科学与工程学院, 山东济南 250022

收稿日期:2008-09-17 出版日期:2009-09-16 发布日期:2009-11-05
通讯作者: 杨波(1965-),男,博士,教授,研究方向为计算机网络与智能信息处理.
作者简介:薛岩波(1983-),男,硕士研究生,研究方向为计算机网络.Emial:nic_xueyb@ujn.edu.cn
基金资助:
国家自然科学基金资助项目(60873089, 60773109)；山东省自然科学基金资助项目(Z2006G03)

Structural health monitoring of civil engineering based on wavelet analysis

XUE Yan-Bei, YANG Bei, CHEN Zhen-Xiang

School of Information Science and Engineering, University of Jinan, Jinan 250022, Shandong, China

Received:2008-09-17 Online:2009-09-16 Published:2009-11-05

摘要/Abstract

摘要：

利用小波分析多分辨率的特点对结构损伤进行在线检测,判定结构损伤位置。在阐述了土木工程结构健康监测系统的组成、监测内容模块的功能及其特点和小波分析进行损伤识别的原理以及结构损伤的多尺度分析的基础上，通过对单层混凝土结构实验台的加速度信号进行小波分析,得到结构损伤的时刻,通过研究信号小波变换的尺度函数确定了损伤的位置,试验表明,该方法具有一定的实用价值。

关键词: 健康监测；小波变换；损伤识别；多尺度分析

Abstract:

Structural damage location is identified by online detection using the multiresolution analysis of wavelet. The paper presents the structure of a civil engineering health monitoring system and the functions and features of monitoring modules. The fundamentals and methods of structural damage detection based on wavelet transform were expounded. The damage time can be found through analyzng the acceleration signal of a singlestory test platform, and the damage locationis identified through analyzing the scaling function of wavelet transformation.The result shows that the method has high practical value.

Key words: health monitoring; wavelet analysis; damage identification; multi resolution analysis

中图分类号:

TP389.1

薛岩波杨波陈贞翔. 小波分析在土木工程结构健康监测系统中的应用研究[J]. J4, 2009, 44(9): 28-31.

XUE Yan-Bei, YANG Bei, CHEN Zhen-Xiang. Structural health monitoring of civil engineering based on wavelet analysis[J]. J4, 2009, 44(9): 28-31.

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