断层(地质)
转子(电动)
计算机科学
卷积神经网络
控制理论(社会学)
超参数
信号(编程语言)
方位(导航)
振动
人工神经网络
人工智能
模式识别(心理学)
工程类
声学
机械工程
物理
地质学
地震学
程序设计语言
控制(管理)
作者
Xiaoyun Gong,Zeheng Zhi,Kunpeng Feng,Wenliao Du,Tao Wang
出处
期刊:Machines
[MDPI AG]
日期:2022-04-14
卷期号:10 (4): 277-277
被引量:12
标识
DOI:10.3390/machines10040277
摘要
Induction motors, the key equipment for rotating machinery, are prone to compound faults, such as a broken rotor bars and bearing defects. It is difficult to extract fault features and identify faults from a single signal because multiple fault features overlap and interfere with each other in a compound fault. Since current signals and vibration signals have different sensitivities to broken rotor and bearing faults, a multi-channel deep convolutional neural network (MC-DCNN) fault diagnosis model based on multi-source signals is proposed in this paper, which integrates the original signals of vibration and current of the motor. Dynamic attenuation learning rate and SELU activation function were used to improve the network hyperparameters of MC-DCNN. The dynamic attenuated learning rate can improve the stability of model training and avoid model collapse effectively. The SELU activation function can avoid the problems of gradient disappearance and gradient explosion during model iteration due to its function configuration, thereby avoiding the model falling into local optima. Experiments showed that the proposed model can effectively solve the problem of motor compound fault identification, and three comparative experiments verified that the improved method can improve the stability of model training and the accuracy of fault identification.
科研通智能强力驱动
Strongly Powered by AbleSci AI