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Abstract:
针对滚动轴承振动信号非线性、非平稳的特点,提出基于迭代滤波分解(iterative filtering decomposition, IFD)提取各分量特征,结合核极限学习机(kernel extreme learning machine, KELM)的故障诊断方法.通过对原始信号进行IFD分解,得到一组本征模态函数(intrinsic mode functions, IMF).计算包含主要故障信息在内的IMF分量能量与排列熵组成的故障特征向量,将特征向量作为KELM输入识别轴承的故障类型.实验分析结果表明,以IFD作为预处理器的特征融合方法比经验模态分解(empirical mode dec...
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福州大学学报(自然科学版)
ISSN: 1000-2243
CN: 35-1337/N
Year: 2020
Issue: 03
Volume: 48
Page: 341-347
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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