精制复合多尺度模糊分散和其在轴承故障诊断中的应用
Mostafa Rostaghi1, Mohammad Mahdi Khatibi1, Mohammad Reza Ashory1
1Modal Analysis (MA) Research Laboratory, Faculty of Mechanical Engineering, Semnan University, Semnan 35131-19111, Iran.
Entropy (Basel, Switzerland)
|November 24, 2023
概括
一种新的方法,精制的复合多尺度模糊分散 (RCMFDE),提高了轴承故障诊断. 通过在多个时间尺度上分析复杂的振动信号,RCMFDE可以准确地检测旋转机器的故障.
科学领域:
- 机械工程 机械工程
- 信号处理 信号处理
- 非线性动力学是一种非线性动力学.
背景情况:
- 由于各种因素,旋转机器表现出非线性行为,导致复杂的振动信号.
- 技术对于检测非线性动态是有效的,但现有的方法,如模糊分散 (FDE) 和多尺度模糊分散 (MFDE) 有局限性.
- 与多尺度分散 (MDE) 相比,MFDE提供了更好的稳定性和降噪,但需要进一步改进.
研究的目的:
- 引入精细的复合多尺度模糊分散 (RCMFDE) 方法,以提高轴承故障检测的稳定性和诊断精度.
- 评估RCMFDE与MFDE,MDE和精制复合多尺度分散 (RCMDE) 等现有方法的性能.
- 通过使用现实世界的数据集来证明RCMFDE在分类轴承故障方面的有效性.
主要方法:
- 精制复合材料多尺度模糊分散 (RCMFDE) 算法的开发.
- 使用合成时间序列数据对RCMFDE的评估.
- 在三个不同的现实世界轴承数据集上验证RCMFDE,将其性能与MFDE,MDE和RCMDE进行比较.
- 基于RCMFDE的分类器的实施,用于轴承故障诊断.
主要成果:
- 与MFDE,MDE和RCMDE相比,RCMFDE在合成和真实轴承数据中检测故障模式方面表现出卓越的性能.
- 使用RCMFDE的分类器在轴承故障诊断中实现了显著更高的准确性.
- RCMFDE的性能优于基于精细复合材料多尺度分散和样本的分类器.
结论:
- RCMFDE是一种强大而有效的方法,用于分析旋转机器的非线性振动信号.
- 拟议的RCMFDE显著提高了轴承故障诊断的准确性和稳定性.
- 在旋转机械的状态监测和故障诊断方面,RCMFDE具有很大的实际应用潜力.
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