SAL-CNN: Estimate the Remaining Useful Life of Bearings Using Time-frequency Information
This addresses the need for accurate RUL prediction in industrial safety and stability, but appears incremental as it builds on existing deep learning approaches with specific modifications.
The paper tackled the problem of predicting the remaining useful life of bearings in industrial systems by proposing an end-to-end method using short-time Fourier transform and a CNN with LSTM and attention modules, achieving results that proved its effectiveness on the 2012PHM dataset.
In modern industrial production, the prediction ability of the remaining useful life (RUL) of bearings directly affects the safety and stability of the system. Traditional methods require rigorous physical modeling and perform poorly for complex systems. In this paper, an end-to-end RUL prediction method is proposed, which uses short-time Fourier transform (STFT) as preprocessing. Considering the time correlation of signal sequences, a long and short-term memory network is designed in CNN, incorporating the convolutional block attention module, and understanding the decision-making process of the network from the interpretability level. Experiments were carried out on the 2012PHM dataset and compared with other methods, and the results proved the effectiveness of the method.