计算机与现代化 ›› 2023, Vol. 0 ›› Issue (07): 1-6.doi: 10.3969/j.issn.1006-2475.2023.07.001

• 人工智能 •    下一篇

基于CWGAN-GP与CNN的轴承故障诊断方法

  

  1. 陆军工程大学野战工程学院
  • 出版日期:2023-07-26 发布日期:2023-07-26
  • 作者简介:江蕾(1994—),女,安徽安庆人,硕士,研究方向:故障诊断,E-mail: jl457331@163.com; 通信作者:唐建(1977—),女,副教授,博士,研究方向:机械装备智能感知与信息处理,E-mail: lgdx_tj@163.com; 杨超越(1995—),男,陕西渭南人,硕士,研究方向:故障诊断,E-mail: 573507742@qq.com; 吕婷婷(1989—),女,硕士,研究方向:装备管理与保障,E-mail: LTT989422@163.com。
  • 基金资助:
    国家自然科学基金资助项目(51705531)

Bearing Fault Diagnosis Based on CWGAN-GP and CNN

  1. College of Field Engineering, Army Engineering University
  • Online:2023-07-26 Published:2023-07-26

摘要: 摘要:针对在实际工作过程中轴承故障样本数偏少且不均衡的问题,提出一种基于条件Wasserstein生成对抗网络(CWGAN-GP)和卷积神经网络(CNN)的轴承故障诊断方法。首先,通过结合条件生成对抗网络(CGAN)和基于梯度惩罚Wasserstein距离的生成对抗网络(WGAN-GP),构建CWGAN-GP生成对抗网络;然后,将少量轴承故障的数据样本输入CWGAN-GP中,以得到与原始样本相似的高质量样本,待网络达到纳什均衡时将生成样本和原始样本混合,产生新的样本集;最后,将新样本集输入卷积神经网络学习样本特征进行故障诊断。实验结果表明,本文提出的诊断方法准确度超过99%,高于其他诊断方法,有效提高了诊断精度,增强了其泛化能力。

关键词: 关键词:故障诊断, 深度学习, 轴承, 生成对抗网络, 卷积神经网络

Abstract: Abstract: Aiming at the problem that the number of bearing fault samples is small and unbalanced in the actual work process, a bearing fault diagnosis method based on Conditional Wasserstein Generative Adversarial Network (CWGAN-GP) and Convolutional Neural Network (CNN) is proposed. First, a CWGAN-GP generative adversarial network is constructed by combining conditional generative adversarial network (CGAN) and gradient penalized Wasserstein distance-based generative adversarial network (WGAN-GP). Then, a small number of bearing fault data samples are input into CWGAN-GP, in order to obtain high-quality samples similar to the original samples. When the network reaches the Nash equilibrium, the generated samples and the original samples are mixed to generate a new sample set. Finally, the new sample set is input into the convolutional neural network to learn the sample features for fault diagnosis. The experimental results show that the diagnostic accuracy of the diagnostic method proposed in this paper exceeds 99%, which is higher than other diagnostic methods, effectively improving the diagnostic accuracy and enhancing its generalization ability.

Key words: Key words: fault diagnosis, deep learning, bearing, generative adversarial network, convolutional neural network

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