Failure time prognosis in manufacturing process using multi-dislocated time series convolutional neural network

Autor: Liping Zhao, Yiyong Yao, Bohao Li
Rok vydání: 2020
Předmět:
Zdroj: Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering. 235:832-840
ISSN: 2041-3009
0954-4089
Popis: Failure time prognosis in manufacturing process plays a crucial role in guaranteeing manufacturing safety and reducing maintenance loss. However, most current prognosis methods face great difficulty when handling massive data collected from manufacturing process. Convolutional neural network (CNN) provides an effective way to extract features with massive data. Due to the difference between images and multisensory signals, CNN is not suitable for machining process. Inspired by the idea of CNN, a novel prognosis framework is proposed based on the characteristics of multisensory signals, which is called multi-dislocated time series convolutional neural network (MDTSCNN). The proposed MDTSCNN is composed of multi-dislocate layer, convolutional layer, pooling layer and fully connected layer. By adding a multi-dislocate layer, this model can learn the relationship between different signals and different intervals in periodic multisensory signals. The effectiveness of proposed method is validated by a milling process. Compared to other prognosis method, the proposed MDTSCNN shows enhanced performances in prediction accuracy.
Databáze: OpenAIRE