Structural Damage Detection Using Convolutional Neural Networks Based on Modal Strain Energy and Population of Structures

作者：Jiqiao Zhang, Zihan Jin, Shuai Teng, Gongfa Chen, Fangsen Cui · 发表于：International Journal of Computational Methods · 年份：2022 · DOI：10.1142/s021987622230001x · 被引用次数：10 · 研究领域：Structural Health Monitoring Techniques、Infrastructure Maintenance and Monitoring、Concrete Corrosion and Durability

A convolutional neural network (CNN)-based structural damage detection (SDD) method using populations of structures and modal strain energy (MSE) is proposed. In this study, sufficient samples of the CNN are provided by numerical simulations, and the size of the model can be changed by modifying the coordinates of some nodes, thereby establishing a series of numerical models (i.e., a population). Finally, three groups are investigated, the effects of multiple indices on damage detection based on population are compared. The results demonstrate that the MSE as a damage index is superior to the other indices.