Paper
1 August 2022 Remaining life prediction of turbofan engine based on multi-path feature fusion
DeQun Zhao, JiaYu Zhao
Author Affiliations +
Proceedings Volume 12257, 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022); 122573O (2022) https://doi.org/10.1117/12.2640207
Event: 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022), 2022, Guangzhou, China
Abstract
A multi-path feature fusion network model and data augmentation algorithm are proposed based on the limitations of the remaining useful life prediction method of a single network model and the problem of small sample size. Firstly, the sample size of data set is expanded through data augmentation, so as to improve the accuracy of prediction. Secondly, two different paths are selected to extract features: the first path inputs the data into the cascade structure of 1- Dimensional Convolutional Neural Network and Gated Recurrent Unit, and extracts spatial and temporal features respectively; the second path inputs the data directly into the Long Short Term Memory to obtain the complete temporal features. Finally, the output features of the two paths are fused, and the result input into the full connection layer for RUL prediction. The proposition is evaluated on the publicly available health monitoring dataset C-MAPSS of aircraft turbofan engines provided by NASA. The results show that compared with the single network model, the proposed method can effectively improve the remaining useful life prediction accuracy of such equipment, and has practical application value.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
DeQun Zhao and JiaYu Zhao "Remaining life prediction of turbofan engine based on multi-path feature fusion", Proc. SPIE 12257, 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022), 122573O (1 August 2022); https://doi.org/10.1117/12.2640207
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KEYWORDS
Data modeling

Sensors

Neural networks

Convolutional neural networks

Data processing

Model-based design

Data fusion

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