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EMD和Elman神经网络在滚动轴承故障诊断中的应用 被引量:6

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摘要 针对滚动轴承故障信号的特点,提出EMD和Elman神经网络结合的滚动轴承故障诊断方法。以滚动轴承振动信号为研究对象,首先对信号进行经验模态分解(EMD),提取包含主要信息成分的本征模函数(IMF)分量,将IMF的能量比作为特征向量输入Elman神经网络进行网络训练和故障识别,实现滚动轴承的故障诊断。结果表明,EMD方法能按频率由高到低把复杂的非平稳信号分解成有限个IMF分量,具有自适应的特点,有效地突出轴承故障特征;而Elman神经网络能直接反映动态过程系统的特性,达到很好的识别效果。
作者 李敏 傅攀
出处 《四川兵工学报》 CAS 2011年第8期59-62,67,共5页 Journal of Sichuan Ordnance
基金 中央高校基本科研业务费专项资金资助--机械装备数字化设计与制造的若干关键技术研究(SWJTU09ZT06)
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参考文献6

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共引文献105

同被引文献38

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