Intelligent Identification of Structural Damage Based on the Curvature Mode and Wavelet Analysis Theory

Author:

Bao Longsheng1,Cao Yue12ORCID,Zhang Xiaowei1ORCID

Affiliation:

1. School of Transportation Engineering, Shenyang Jian Zhu University, Shenyang 110168, China

2. College of Civil Engineering, Shenyang Jian Zhu University, Shenyang 110168, China

Abstract

Structural health monitoring is extensively used in new and old structures. During the process of monitoring, a large amount of data is generated. The selection of the appropriate methodology for the analysis of these data constitutes a major problem for maintenance personnel. Therefore, the purpose of this study is to programme data according to the curvature mode and wavelet transform theory to achieve automatic identification of structural damage and explore its applicability. First, the damage model is established with finite element software, and the applicability of the theory is verified by analysing the wavelet coefficients before and after structural damage. Thereafter, a programme is written to achieve the automatic output of the structural damage location based on the finite element results and basic theory. Data fitting is then performed to estimate the degree of structural damage. To evaluate the effects of the practical application of the programme, experimental verification is conducted. The experimental results demonstrate that the programme can automatically output the damage location and avoid the occurrence of calculation errors.

Funder

National Key R&D Program of China

Publisher

Hindawi Limited

Subject

Civil and Structural Engineering

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