TY  - EJOU
AU  - Sha, Chun 
AU  - Yue, Chaohui 
AU  - Wang, Wenchen 

TI  - Ensemble 1D DenseNet Damage Identification Method Based on Vibration Acceleration
T2  - Structural Durability \& Health Monitoring

PY  - 2023
VL  - 17
IS  - 5
SN  - 1930-2991

AB  - Convolution neural networks in deep learning can solve the problem of damage identification based on vibration acceleration. By combining multiple 1D DenseNet submodels, a new ensemble learning method is proposed to improve identification accuracy. 1D DenseNet is built using standard 1D CNN and DenseNet basic blocks, and the acceleration data obtained from multiple sampling points is brought into the 1D DenseNet training to generate submodels after offset sampling. When using submodels for damage identification, the voting method ideas in ensemble learning are used to vote on the results of each submodel, and then vote centrally. Finally, the cantilever damage problem simulated by ABAQUS is selected as a case study to discuss the excellent performance of the proposed method. The results show that the ensemble 1D DenseNet damage identification method outperforms any submodel in terms of accuracy. Furthermore, the submodel is visualized to demonstrate its operation mode.
KW  - Acceleration; damage identification; 1D DenseNet; cantilever beam; ensemble learning

DO  - 10.32604/sdhm.2023.027948