arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2408.07099cs.LGcs.AIeess.SP
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基于图采样与聚合网络的轴承故障诊断

Bearing Fault Diagnosis using Graph Sampling and Aggregation Network

Xinjiang University(新疆大学);Incheon National University(仁川国立大学)

Jiaying Chen, Xusheng Du, Yurong Qian, Gwanggil Jeon

AI总结:

针对传统轴承故障诊断方法未考虑信号间复杂关联导致精度受限的问题,提出基于GraphSAGE的GSABFD算法,通过图建模振动信号关联实现故障诊断,在公开数据集上AUC较次优算法提升5%。

摘要:

轴承故障诊断技术在工业生产、能源等领域具有广泛的实际应用。及时准确地检测轴承故障对预防灾难性事故、保障产品质量具有重要作用。传统的信号分析技术和基于深度学习的故障检测算法未考虑信号之间的复杂关联,导致检测精度难以进一步提升。针对这一问题,我们引入了图采样与聚合(Graph Sampling and Aggregation,GraphSAGE)网络,提出了基于GraphSAGE的轴承故障诊断(GraphSAGE-based Bearing fault Diagnosis,GSABFD)算法。该算法首先通过固定大小的非重叠滑动窗口对原始振动信号进行切片,并采用信号分析方法对切片后的数据进行特征变换;随后为变换后的振动信号构建关联关系,并进一步将其转化为图中的顶点;接着利用GraphSAGE网络进行训练;最后在网络的输出层计算目标对象的故障等级。我们在一个真实公开数据集上将所提算法与5种先进算法进行了对比实验,结果表明,GSABFD算法的AUC值相较次优算法提升了5%。

英文摘要:

Bearing fault diagnosis technology has a wide range of practical applications in industrial production, energy and other fields. Timely and accurate detection of bearing faults plays an important role in preventing catastrophic accidents and ensuring product quality. Traditional signal analysis techniques and deep learning-based fault detection algorithms do not take into account the intricate correlation between signals, making it difficult to further improve detection accuracy. To address this problem, we introduced Graph Sampling and Aggregation (GraphSAGE) network and proposed GraphSAGE-based Bearing fault Diagnosis (GSABFD) algorithm. The original vibration signal is firstly sliced through a fixed size non-overlapping sliding window, and the sliced data is feature transformed using signal analysis methods; then correlations are constructed for the transformed vibration signal and further transformed into vertices in the graph; then the GraphSAGE network is used for training; finally the fault level of the object is calculated in the output layer of the network. The proposed algorithm is compared with five advanced algorithms in a real-world public dataset for experiments, and the results show that the GSABFD algorithm improves the AUC value by 5% compared with the next best algorithm.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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