首页|A deep neural network based surrogate model for damage identification in full-scale structures with incomplete noisy measurements

A deep neural network based surrogate model for damage identification in full-scale structures with incomplete noisy measurements

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The paper introduces a novel approach for detecting structural damage in full-scale structures using surrogate models generated from incomplete modal data and deep neural networks(DNNs).A significant challenge in this field is the limited availability of measurement data for full-scale structures,which is addressed in this paper by generating data sets using a reduced finite element(FE)model constructed by SAP2000 software and the MATLAB programming loop.The surrogate models are trained using response data obtained from the monitored structure through a limited number of measurement devices.The proposed approach involves training a single surrogate model that can quickly predict the location and severity of damage for all potential scenarios.To achieve the most generalized surrogate model,the study explores different types of layers and hyperparameters of the training algorithm and employs state-of-the-art techniques to avoid overfitting and to accelerate the training process.The approach's effectiveness,efficiency,and applicability are demonstrated by two numerical examples.The study also verifies the robustness of the proposed approach on data sets with sparse and noisy measured data.Overall,the proposed approach is a promising alternative to traditional approaches that rely on FE model updating and optimization algorithms,which can be computationally intensive.This approach also shows potential for broader applications in structural damage detection.

vibration-based damage detectiondeep neural networkfull-scale structuresfinite element model updatingnoisy incomplete modal data

Tram BUI-NGOC、Duy-Khuong LY、Tam T TRUONG、Chanachai THONGCHOM、T.NGUYEN-THOI

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Laboratory for Computational Mechanics,Institute for Computational Science and Artificial Intelligence,Van Lang University,Ho Chi Minh City 70000,Vietnam

Faculty of Mechanical-Electrical and Computer Engineering,School of Technology,Van Lang University,Ho Chi Minh City 70000,Vietnam

Faculty of Civil Engineering,School of Technology,Van Lang University,Ho Chi Minh City 70000,Vietnam

Department of Computer Science,Aarhus University,Aarhus 8000,Denmark

Thammasat University research unit in structural and foundation engineering,Department of Civil Engineering,Thammasat University,Pathumthani 12120,Thailand

Laboratory for Applied and Industrial Mathematics,Institute for Computational Science and Artificial Intelligence,Van Lang University,Ho Chi Minh City 70000,Vietnam

Thammasat School of Engineering,Thammasat University,Pathumthani 12120,Thailand

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Bualuang ASEAN Chair Professor Fund

2024

10.1007/s11709-024-1060-8

结构与土木工程前沿
高等教育出版社

结构与土木工程前沿

CSTPCDEI
影响因子：0.082
ISSN：2095-2430
年,卷(期)：2024.(3)