Knowledge Commons of Institute of Automation,CAS
A Risk-Averse Remaining Useful Life Estimation for Predictive Maintenance | |
Chuang Chen; Ningyun Lu; Bin Jiang; Cunsong Wang | |
发表期刊 | IEEE/CAA Journal of Automatica Sinica |
ISSN | 2329-9266 |
2021 | |
卷号 | 8期号:2页码:412-422 |
摘要 | Remaining useful life (RUL) prediction is an advanced technique for system maintenance scheduling. Most of existing RUL prediction methods are only interested in the precision of RUL estimation; the adverse impact of over-estimated RUL on maintenance scheduling is not of concern. In this work, an RUL estimation method with risk-averse adaptation is developed which can reduce the over-estimation rate while maintaining a reasonable under-estimation level. The proposed method includes a module of degradation feature selection to obtain crucial features which reflect system degradation trends. Then, the latent structure between the degradation features and the RUL labels is modeled by a support vector regression (SVR) model and a long short-term memory (LSTM) network, respectively. To enhance the prediction robustness and increase its marginal utility, the SVR model and the LSTM model are integrated to generate a hybrid model via three connection parameters. By designing a cost function with penalty mechanism, the three parameters are determined using a modified grey wolf optimization algorithm. In addition, a cost metric is proposed to measure the benefit of such a risk-averse predictive maintenance method. Verification is done using an aero-engine data set from NASA. The results show the feasibility and effectiveness of the proposed RUL estimation method and the predictive maintenance strategy. |
关键词 | Long short-term memory (LSTM) network predictive maintenance remaining useful life (RUL) estimation risk-averse adaptation support vector regression (SVR) |
DOI | 10.1109/JAS.2021.1003835 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/43921 |
专题 | 学术期刊_IEEE/CAA Journal of Automatica Sinica |
推荐引用方式 GB/T 7714 | Chuang Chen,Ningyun Lu,Bin Jiang,et al. A Risk-Averse Remaining Useful Life Estimation for Predictive Maintenance[J]. IEEE/CAA Journal of Automatica Sinica,2021,8(2):412-422. |
APA | Chuang Chen,Ningyun Lu,Bin Jiang,&Cunsong Wang.(2021).A Risk-Averse Remaining Useful Life Estimation for Predictive Maintenance.IEEE/CAA Journal of Automatica Sinica,8(2),412-422. |
MLA | Chuang Chen,et al."A Risk-Averse Remaining Useful Life Estimation for Predictive Maintenance".IEEE/CAA Journal of Automatica Sinica 8.2(2021):412-422. |
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