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Damage Diagnosis of Bleacher Based on an Enhanced Convolutional Neural Network with Training Interference
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Damage Diagnosis of Bleacher Based on an Enhanced Convolutional Neural Network with Training Interference
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Journal Article
Damage Diagnosis of Bleacher Based on an Enhanced Convolutional Neural Network with Training Interference
2024
Overview
Bleachers play a crucial role in practical engineering applications, and any damage incurred during their operation poses a significant threat to the safety of both life and property. Consequently, it becomes imperative to conduct damage diagnosis and health monitoring of bleachers. The intricate structure of bleachers, the varied types of potential damage, and the presence of similar vibration data in adjacent locations make it challenging to achieve satisfactory diagnosis accuracy through traditional time-frequency analysis methods. Furthermore, field environmental noise can adversely impact the accuracy of bleacher damage diagnosis. To enhance the accuracy and anti-noise capabilities of bleacher damage diagnosis, this paper proposes improvements to the existing Convolutional Neural Network with Training Interference (TICNN). The result is an advanced Convolutional Neural Network model with superior accuracy and robust anti-noise capabilities, referred to as Enhanced TICNN (ETICNN). ETICNN autonomously extracts optimal damage-sensitive features from the original vibration data. To validate the superiority of the proposed ETICNN, experiments are conducted using the bleacher model from Qatar University as the subject. Comparative studies under identical experimental conditions involve TICNN, Deep Convolutional Neural Networks with wide first-layer kernels (WDCNN), and One-Dimensional Convolutional Neural Network (1DCNN). The experimental findings demonstrate that the ETICNN model achieves the highest accuracy, approximately 99%, and exhibits robust classification abilities in both Phases I and II of the damage diagnosis experiments. Simultaneously, the ETICNN model demonstrates strong anti-noise capabilities, outperforming TICNN by 3% to 4% and surpassing other models in performance.
Publisher
Tech Science Press
