1.Key Laboratory of Advanced Manufacturing and Intelligent Technology, Harbin University of Science and Technology, Harbin 150080, 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, China;
4.College of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China;
5.School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China
Abstract:In order to address the problem of low fault identification accuracy of planetary gears under noisy environment and time-varying rotational speed conditions, a fault diagnosis method for planetary gears using the stacked denoising autoencoder (SDAE) and gated recurrent unit neural network (GRUNN) was proposed.A hybrid model based on the SDAE and GRUNN was constructed to process pre and post correlation time-series data, and automatically extract robust fault features.The training samples for planetary gear fault diagnosis were regarded as the input data of the hybrid model.The Adam optimization algorithm and the dropout technique were employed to train the hybrid model so as to realize the optimization of multiple parameters and prevent from overfitting.A softmax classifier was employed to identify the planetary gear states of test samples according to the hybrid model after training.The effectiveness of the proposed method was validated through a fault identification experiment of planetary gears.The experimental results demonstrate that the proposed method is of stronger anti-noise ability and excellent adaptability to time-varying rotational speed.
于军1,2,3,高莲莲4,于广滨5,刘可1,3,郭振宇2. 基于SDAE和GRUNN的行星齿轮故障识别[J]. 振动与冲击, 2021, 40(2): 156-163.
YU Jun1,2,3,GAO Lianlian4,YU Gangbin5,LIU Ke1,3,GUO Zhenyu2. Fault identification of planetary gears based on the SDAE and GRUNN. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(2): 156-163.
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