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基于AR双谱及其切片的溢流阀故障诊断

Fault Diagnosis of Relief Valve Based on AR Bispectrum
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摘要 针对溢流阀体故障状态时振动信号具有明显非线性、非高斯的特点,建立基于时间序列AR双谱分析模型,给出了归一化AR双谱的计算公式;通过实验,对比了正常情况和故障情况下溢流阀的双谱图、等高线图,差异明显。实验结果表明采用AR双谱的方法来诊断液压阀的故障是可行的、有效的。
作者 陈琼英
出处 《液压与气动》 北大核心 2012年第6期106-109,共4页 Chinese Hydraulics & Pneumatics
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参考文献8

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