| 一种基于时频分析的故障状态监测方法 |
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| 引用本文： | 陈光军 胡昌华 任章. 一种基于时频分析的故障状态监测方法[J]. 机械科学与技术, 2004, 23(3): 303-305 |
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| 作者姓名： | 陈光军 胡昌华 任章 |
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| 作者单位： | 西北工业大学,航海工程学院,西安,710072;第二炮兵工程学院,西安,710025 |
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| 摘 要： | 提出了一种基于信号PMH时频分布幅值特征进行故障分离定位的方法 ,并以某柴油机在正常状态、排气阀门存在小裂缝和排气阀门存在大裂缝状态三种情况下缸盖振动信号为分析对象 ,对文中提出的方法进行了验证分析 ,实验结果表明该方法有较好的工程应用效果
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| 关 键 词： | 时频分布 故障诊断 PMH分布 |
| 文章编号： | 1003-8728(2004)03-0303-03 |
A Fault Diagnosis Method Based on Time-Frequency Analysis |
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| CHEN Guang-jun ,HU Chang-hua ,REN-Zhang. A Fault Diagnosis Method Based on Time-Frequency Analysis[J]. Mechanical Science and Technology for Aerospace Engineering, 2004, 23(3): 303-305 |
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| Authors: | CHEN Guang-jun HU Chang-hua REN-Zhang |
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| Affiliation: | CHEN Guang-jun 1,HU Chang-hua 2,REN-Zhang 1 |
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| Abstract: | A fault diagnosis method based on the characteristic feature of amplitude of Pseudo-Margenau-Hill Distribution(PMHD) is presented. Experiments are carried out when the condition monitoring is in normal state, in fault state of small crack, and in fault state of big crack. Experiment results show that the method has good performance in the fault isolation. |
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| Keywords: | Time-frequency distribution Fault diagnosis PMH distribution |
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