| 信号分析在柴油机气缸压力识别中的应用 |
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| 引用本文： | 石林锁.信号分析在柴油机气缸压力识别中的应用[J].振动工程学报,1998,11(2):204-209. |
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| 作者姓名： | 石林锁 |
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| 作者单位： | 第二炮兵工程学院二系 |
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| 摘 要： | 论述了采用小波包算法对柴油机缸盖振动信号进行时频特性分析和信噪分离的方法，比较了不同的建模方法的特点并利用时间序列分析方法对缸盖振动信号和气缸压力信号分别建立时序模型，求取了缸盖系统的传递函数，达到了利用缸盖表面振动信号识别气缸压力的目的。
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| 关 键 词： | 柴油机 振动 小波包 气缸压力 时序分析 |
Application of Vibration Signals Analysis in Identification of Diesel Cylinder Pressure |
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| Shi Linsuo,Zhang Zhenren,Wang Chendong,Chen Xiangchu.Application of Vibration Signals Analysis in Identification of Diesel Cylinder Pressure[J].Journal of Vibration Engineering,1998,11(2):204-209. |
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| Authors: | Shi Linsuo Zhang Zhenren Wang Chendong Chen Xiangchu |
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| Abstract: | The wavelet packet algorithms are discussed to analyze the time frequency characteristics and to separate the signal noise in vibration signals which are acquired from the diesel engine cylinder head. The models of cylinder head vibration and the cylinder pressure are respectively built based on the Time Series method. Finally, the transfer function of cylinder head is obtained for the above models. The purpose to identify of diesel engine cylinder pressure from vibration signal is achieved. |
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| Keywords: | diesel engine vibration wavelet packet cylinder pressure Time Series analysis |
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