[1]孙增寿,韩建刚,任伟新..基于曲率模态和小波变换的简支梁桥损伤识别方法[J].郑州大学学报(工学版),2005,26(03):24-27,31.[doi:10.3969/j.issn.1671-6833.2005.03.007]
　Sun Zengshou,Han Jiangang,Ren Weixin.Damage recognition method of simple supported girder bridge based on curvature mode and wavelet transform[J].Journal of Zhengzhou University (Engineering Science),2005,26(03):24-27,31.[doi:10.3969/j.issn.1671-6833.2005.03.007]
点击复制

基于曲率模态和小波变换的简支梁桥损伤识别方法()
分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
26卷
期数:
2005年03期
页码:
24-27,31
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Damage recognition method of simple supported girder bridge based on curvature mode and wavelet transform
作者:
孙增寿; 韩建刚; 任伟新.
福州大学土木建筑工程学院,福建,福州,350002;州大学土木工程学院,河南,郑州,450002, 福州大学土木建筑工程学院,福建,福州,350002
Author(s):
Sun Zengshou; Han Jiangang; Ren Weixin
关键词:
小波变换;  曲率模态;  损伤识别
Keywords:
DOI:
10.3969/j.issn.1671-6833.2005.03.007
文献标志码:
A
摘要:
小波变换具有在时域和频域内表征信号局部特性的能力,能够在不同尺度下对结构响应中的突变信号进行放大和识别.本文在曲率模态基础上,提出了一种基于小波变换的梁式结构损伤识别方法.利用双正交小波函数对损伤前后结构的曲率模态进行小波变换,通过小波变换系数的变化和分布情况建立了结构损伤指标,可判定损伤存在,确定损伤位置和估计损伤程度.并通过一简支梁桥中T形截面梁的数值模拟对该方法进行了验证.
Abstract:
Wavelet transform has the ability to characterize the local characteristics of signals in the time and frequency domains, and can amplify and identify abrupt signals in structural responses at different scales. Based on the curvature mode, a beam structure damage recognition method based on wavelet transform is proposed. The wavelet transform of the curvature mode of the structure before and after injury is carried out by using the biorthogonal wavelet function, and the structural damage index is established through the change and distribution of the wavelet transform coefficient, which can determine the existence of damage, determine the damage location and estimate the degree of damage. The method is verified by numerical simulation of T-shaped cross-section beam in a simple supported beam bridge.

相似文献/References:

[1]张卫党,王新丽..联合Turbo码和小波变换图像的不平等保护[J].郑州大学学报(工学版),2013,34(04):120.[doi:10.3969/j.issn.1671-6833.2013.04.028]
[2]卜英勇,张超,聂双双..基于离散小波变换的水下回波信号尾波包络特征提取[J].郑州大学学报(工学版),2007,28(04):80.[doi:10.3969/j.issn.1671-6833.2007.04.020]
　Bu Yingyong,ZHANG Chao,Nie Shuangshuang.Underwater echo signal wake envelope feature extraction based on discrete wavelet transform[J].Journal of Zhengzhou University (Engineering Science),2007,28(03):80.[doi:10.3969/j.issn.1671-6833.2007.04.020]
[3]师黎,王丽佳..小波变换在心电信号处理及特征提取中的应用[J].郑州大学学报(工学版),2006,27(02):65.[doi:10.3969/j.issn.1671-6833.2006.02.016]
　Shi Li,Wang Lijia.Application of wavelet transform in ECG signal processing and feature extraction[J].Journal of Zhengzhou University (Engineering Science),2006,27(03):65.[doi:10.3969/j.issn.1671-6833.2006.02.016]
[4]范文兵,陈静,甄姬娜..图像小波系数的自相似性在图像去噪中的应用[J].郑州大学学报(工学版),2005,26(03):89.[doi:10.3969/j.issn.1671-6833.2005.03.024]
　FAN Wenbing,CHEN Jing,Zhen Jina.Application of self-similarity of image wavelet coefficient in image denoising[J].Journal of Zhengzhou University (Engineering Science),2005,26(03):89.[doi:10.3969/j.issn.1671-6833.2005.03.024]
[5]邓华,蔡迎春,张蓓..小波变换在路用雷达信号处理中的应用[J].郑州大学学报(工学版),2002,23(01):101.[doi:10.3969/j.issn.1671-6833.2002.01.028]
　DENG Hua,Cai Yingchun,ZHANG Bei.Application of wavelet transform in road radar signal processing[J].Journal of Zhengzhou University (Engineering Science),2002,23(03):101.[doi:10.3969/j.issn.1671-6833.2002.01.028]
[6]禹丹江,陈淮..桥梁损伤检测的曲率模态方法探讨[J].郑州大学学报(工学版),2002,23(03):104.[doi:10.3969/j.issn.1671-6833.2002.03.029]
　Yu Danjiang,Chen Huai.Discussion on curvature mode method for bridge damage detection[J].Journal of Zhengzhou University (Engineering Science),2002,23(03):104.[doi:10.3969/j.issn.1671-6833.2002.03.029]

更新日期/Last Update: 1900-01-01