Practical Options for Adopting Recurrent Neural Network and Its Variants on Remaining Useful Life Prediction

查看全文 作　　者：Youdao [1]Wang;Yifan [1]Zhao;Sri [1]Addepalli

机构地区：[1]School of Aerospace,Transport and Manufacturing,Cranfield University,Cranfield MK430AL,UK

出　　处：《Chinese Journal of Mechanical Engineering》索引2021年第34卷第3期,共20页

基　　金：Supported by U.K.EPSRC Platform Grant(Grant No.EP/P027121/1). 摘　　要：The remaining useful life(RUL)of a system is generally predicted by utilising the data collected from the sensors that continuously monitor different indicators.Recently,different deep learning(DL)techniques have been used for RUL prediction and achieved great success.Because the data is often time-sequential,recurrent neural network(RNN)has attracted significant interests due to its efficiency in dealing with such data.This paper systematically reviews RNN and its variants for RUL prediction,with a specific focus on understanding how different components(e.g.,types of optimisers and activation functions)or parameters(e.g.,sequence length,neuron quantities)affect their performance.After that,a case study using the well-studied NASA’s C-MAPSS dataset is presented to quantitatively evaluate the influence of various state-of-the-art RNN structures on the RUL prediction performance.The result suggests that the variant methods usually perform better than the original RNN,and among which,Bi-directional Long Short-Term Memory generally has the best performance in terms of stability,precision and accuracy.Certain model structures may fail to produce valid RUL prediction result due to the gradient vanishing or gradient exploring problem if the parameters are not chosen appropriately.It is concluded that parameter tuning is a crucial step to achieve optimal prediction performance. 关键词：Remaining useful life prediction Deep learning Recurrent neural network Long short-term memory Bi-directional long short-term memory Gated recurrent unit

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Practical Options for Adopting Recurrent Neural Network and Its Variants on Remaining Useful Life Prediction

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耦合文献(19)

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