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arXiv 2403.12554eess.SP
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基于非负张量分解的振动局部损伤检测

Non-negative tensor factorization for vibration-based local damage detection

Mateusz Gabor, Rafal Zdunek, Radoslaw Zimroz, Jacek Wodecki, Agnieszka Wylomanska

AI总结:

提出基于非负张量分解的滚动轴承振动局部损伤检测方法,从三维时频表示中提取信息分量,实验证明其优于非负矩阵分解。

摘要:

本研究提出了一种基于非负张量分解(NTF)的新方法,用于滚动轴承中基于振动的局部损伤检测。由于从故障机器上记录的诊断信号是非平稳的,时频方法常被用作主要的分解技术。本文提出从观测信号的时频表示所构成的三维数组中提取多线性NTF分量,该信号被分割成块。由此,频率和时间上的信息分量可以与非信息分量有效分离。在合成信号和真实信号上进行的实验表明,与已知的非负矩阵分解方法相比,所提方法具有高效率。

英文摘要:

In this study, a novel non-negative tensor factorization (NTF)-based method for vibration-based local damage detection in rolling element bearings is proposed. As the diagnostic signal registered from a faulty machine is non-stationary, the time-frequency method is frequently used as a primary decomposition technique. It is proposed here to extract multi-linear NTF-based components from a 3D array of time-frequency representations of an observed signal partitioned into blocks. As a result, frequency and temporal informative components can be efficiently separated from non-informative ones. The experiments performed on synthetic and real signals demonstrate the high efficiency of the proposed method with respect to the already known non-negative matrix factorization approach.

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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