| 内燃机进气压力的小波分析 |
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| 引用本文： | 夏勇,张振仁,陈卫昌,刘学杰.内燃机进气压力的小波分析[J].机械,2002,29(1):23-24,27. |
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| 作者姓名： | 夏勇 张振仁 陈卫昌 刘学杰 |
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| 作者单位： | 第二炮兵工程学院,陕西,西安,710025 |
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| 摘 要： | 探讨了进气压力信号与气阀机构状态之间的关系，对进气压力信号进行二进小波分解，利用分解后尺度1信号的频域特征对气阀机构进行状态分类与识别。结果与实例分析表明方法是有效和可行的。
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| 关 键 词： | 小波分析 进气压力 故障诊断 内燃机 柴油机 气阀机构 |
| 文章编号： | 1006-0316(2002)01-0023-03 |
Wavelet analysis of inlet pressure of internal combustion engines |
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| XIA Yong,ZHANG Zhen ren,CHEN Wei chang,LIU Xue jie.Wavelet analysis of inlet pressure of internal combustion engines[J].Machinery,2002,29(1):23-24,27. |
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| Authors: | XIA Yong ZHANG Zhen ren CHEN Wei chang LIU Xue jie |
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| Abstract: | Inlet pressure signals were analyzed in time and frequency domain and the relationship between the inlet pressure signals and the states of valve train were discussed Inlet pressure signals were decomposed with dyadic wavelet Maximum amplitudes of various frequency bands of the signal on scale 1 were computed,from which the diagnosis characteristic was extracted to recognize the state of the valve train The results show that this method is effective and feasible |
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| Keywords: | wavelet analysis inlet pressure fault diagnosis |
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