混合注意力与并行多分支CNN融合的船用轴承 故障诊断

Ship Bearing Fault Diagnosis Based on the Fusion of Hybrid Attention and Parallel Multi-branch CNN

  • 摘要: 该模型通过嵌入多种混合注意力模块增强特征学习能力,设置并行多分支结构捕捉不同尺度的特征信息,运用双优化器开 展模型的深度训练。研究借助连续小波变换、格拉姆角差场及马尔可夫转移场对轴承振动信号进行特征提取与维度转换, 使用凯斯西储大学轴承振动数据集进行模型预训练。研究引入MFPT变载荷数据集,通过叠加噪声干扰,构建船用模拟 工况数据集。借助迁移学习策略验证模型在跨数据集、复杂工况下的适配性,并将可视化技术引入研究全过程。测试表明, HAtt-Inception具备良好的适应能力,检测耗时远低于传统方式。

     

    Abstract: (HAtt-Inception) integrated with hybrid attention mechanisms. The model enhances feature learning capability via embedded hybrid attention modules,captures multi-scale feature information through a parallel multi-branch structure,and implements deep training using dual optimizers. Bearing vibration signals are processed by continuous wavelet transform,gramian angular difference field,and markov transition field for feature extraction and dimension conversion. pretraining is performed on the case western reserve university bearing dataset, while a simulated marine operating condition dataset is constructed by superimposing noise interference on the variable-load MFPT dataset. Transfer learning is adopted to verify the modelʹs adaptability under cross-dataset and complex operating conditions, with visualization techniques integrated throughout the research. Tests demonstrate that HAtt-Inception exhibits excellent adaptability and significantly lower detection latency than traditional methods.

     

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