| 基于Hilbert-Huang变换的柴油机气门漏气故障诊断研究 |
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| 引用本文： | 周平,林瑞霖.基于Hilbert-Huang变换的柴油机气门漏气故障诊断研究[J].船海工程,2007,36(6):52-55. |
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| 作者姓名： | 周平 林瑞霖 |
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| 作者单位： | 海军工程大学,船舶与动力学院,武汉,430033 |
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| 摘 要： | 分析柴油机漏气故障的振动诊断机理,阐明Hilbert谱与傅里叶谱的区别,通过引入Hilbert-Huang变换这种新的时频分析方法成功诊断了气门漏气故障。
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| 关 键 词： | 故障诊断 柴油机 气门漏气 振动信号 Hilbert-Huang变换 |
| 文章编号： | 1671-7953（2007）06-0052-04 |
| 收稿时间： | 2007-04-20 |
| 修稿时间： | 2007-04-27 |
Fault diagnosis of diesel engine valve leakage based on hilbert-huang transform |
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| Authors: | ZHOU Ping LIN Ruilin |
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| Abstract: | Vibration mechanism of diagnosis of valve leakage was studied in this paper;the distinction between Hilbert spectrum and Fourier spectrum is clarified;valve leakage fault is successfully diagnosed by using a new time-frequency analyzing method-Hilbert-Huang transform,which give a prospect application for fault diagnosis of diesel engine. |
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| Keywords: | fault diagnosis diesel engine valve leakage vibration signal hilbert-huang transform |
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