Remaining useful life estimation using a bidirectional recurrent neural network based autoencoder scheme
| Autor: | Wennian Yu, Chris K. Mechefske, Ii Yong Kim |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Scheme (programming language)
0209 industrial biotechnology Computer science Aerospace Engineering 02 engineering and technology 01 natural sciences Health index 020901 industrial engineering & automation Similarity (network science) 0103 physical sciences 010301 acoustics Prognostic models Civil and Structural Engineering computer.programming_language business.industry Mechanical Engineering Deep learning Pattern recognition Construct (python library) Autoencoder Computer Science Applications Recurrent neural network Control and Systems Engineering Signal Processing Artificial intelligence business computer |
| Zdroj: | Mechanical Systems and Signal Processing. 129:764-780 |
| ISSN: | 0888-3270 |
| DOI: | 10.1016/j.ymssp.2019.05.005 |
| Popis: | System remaining useful life (RUL) estimation is one of the major prognostic activities in industrial applications. In this paper, we propose a sensor-based data-driven scheme using a deep learning tool and the similarity-based curve matching technique to estimate the RUL of a system. The whole procedure consists of two steps: in the first step, a bidirectional recurrent neural network based autoencoder is trained in an unsupervised way to convert the multi-sensor (high-dimensional) readings collected from historical run-to-failure instances (i.e. multiple units of the same system) to low-dimensional embeddings, which are used to construct the one-dimensional health index (HI) values to reflect various health degradation patterns of the instances. In the second step, the test HI curve obtained from sensor readings collected from an on-line instance is compared with the degradation patterns built in the offline phase using the similarity-based curve matching technique, from which the RUL of the test unit can be estimated at an early stage. The proposed scheme was tested on two publicly available run-to-failure datasets: the turbofan engine datasets (simulation datasets) and the milling datasets (experimental datasets). The prognostic performance of the proposed procedure was directly compared with the existing state-of-art prognostic models in terms of various prognostic metrics on the two datasets respectively. The comparison results demonstrate the competitiveness of the proposed method used for RUL estimation of systems. |
| Databáze: | OpenAIRE |
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