Structural Damage Identification Based on Wavelet Analysis and Particle Swarm Optimization

DOI

10.2991/ifeesm-17.2018.85How to use a DOI?

Keywords

damage identification; continuous wavelet transform; particle swarm optimization

Abstract

In order to identify the multiple damage of the structure, this paper presents a method of structural damage identification based on wavelet analysis and particle swarm optimization(PSO). Firstly, analyzing dynamic characteristics of the finite element model to obtain the strain mode, then continuous wavelet transform is carried out for the strain mode, and the damage location of the structure is identified according to the modulus maximum of the wavelet coefficient, on this basis, using the natural frequency and the vibration mode before and after the structural damage construct the objective function, and then using PSO algorithm optimize the objective function to obtain the damage degree of the structure. Finally, a numerical example is given to demonstrate the effectiveness of this method in identifying structural damage.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Deqing Guan
AU  - Yungang Liu
AU  - Qinchang Wang
PY  - 2018/02
DA  - 2018/02
TI  - Structural Damage Identification Based on Wavelet Analysis and Particle Swarm Optimization
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 448
EP  - 451
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.85
DO  - 10.2991/ifeesm-17.2018.85
ID  - Guan2018/02
ER  -