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Acta Armamentarii ›› 2020, Vol. 41 ›› Issue (11): 2170-2178.doi: 10.3969/j.issn.1000-1093.2020.11.003

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Remaining Useful Life Prediction of Planet Bearings Based on Conditional Deep Recurrent Generative Adversarial Network and Action Discovery

YU Jun1,2,3, LIU Ke1,3, GUO Shuai4, YU Guangbin1, GUO Zhenyu2   

  1. (1.Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China; 2.State Key Laboratory of Process Automation in Mining & Metallurgy, Beijing 100089, China; 3.School of Automation, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China; 4.Division of Steam Turbine, The No. 703 Research Institute, China State Shipbuilding Corporation Limited, Harbin 150078, Heilongjiang, China)
  • Online:2020-12-04

Abstract: In order to address the problem about the remaining useful life (RUL) prediction of planet bearings under small samples and varying operating conditions, a RUL prediction method of planet bearings based on conditional deep recurrent generative adversarial network (C-DRGAN) and action discovery (AD) is presented. The gated recurrent unit neural network is integrated with conditional generative adversarial network to construct the C-DRGAN, which extracts the fault features from the nonlinear and non-stationary signals so as to realize the RUL prediction of planet bearings under small samples and varying operating conditions conditions. Then the training algorithm based on AD is employed to train the C-DRGAN to enhance the convergence speed and reduce the training time. Finally, according to the C-DRGAN after training, a multiple linear regression classifier is employed to predict the RUL of planet bearings in test samples. The effectiveness of the proposed method is validated through an accelerated fatigue life experiment of planet bearings. The results show that the proposed method processes strong processing adaptability to the nonlinear and non-stationary signals and obtains the excellent performance in the case of small samples.

Key words: planetbearing, remainingusefullifeprediction, gatedrecurrentunitneuralnetwork, conditionalgenerativeadversarialnetwork, actiondiscovery, smallsample

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