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
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。
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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