| 坦克柴油机振动检测时提高振动信号信噪比的方法 |
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| 引用本文： | 乔新勇,张小明,谢晓阳.坦克柴油机振动检测时提高振动信号信噪比的方法[J].装甲兵工程学院学报,2010,24(6). |
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| 作者姓名： | 乔新勇 张小明 谢晓阳 |
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| 作者单位： | 装甲兵工程学院机械工程系 |
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| 摘 要： | 研究了柴油机振动信号的时域同步平均方法,针对柴油机振动信号的循环波动性特点,提出了按曲轴转角进行角域同步平均的方法,减小循环波动性对信号分析的影响。利用多抽样率分析方法消除了同步平均时柴油机转速波动的影响。通过对坦克柴油机汽缸盖振动信号的处理结果表明,该方法可有效提高信噪比。
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| 关 键 词： | 柴油机 振动信号 信噪比 同步平均 多抽样率分析 |
Method for Improving the Signal-noise-ratio of Vibration Signals in Condition Detection of Tank Diesel Engine |
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| QIAO Xin-yong,ZHANG Xiao-ming,XIE Xiao-yang.Method for Improving the Signal-noise-ratio of Vibration Signals in Condition Detection of Tank Diesel Engine[J].Journal of Armored Force Engineering Institute,2010,24(6). |
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| Authors: | QIAO Xin-yong ZHANG Xiao-ming XIE Xiao-yang |
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| Institution: | QIAO Xin-yong; ZHANG Xiao-ming; XIE Xiao-yang(Department of Mechanical Engineering; Academy of Armored Force Engineering; Beijing 100072; China); |
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| Abstract: | The time domain average method for diesel vibration signal is researched.According to the circulation wave character of vibration signals of diesel engine,the angle domain average method is put forward to reduce the effect of circulation wave character on signal analysis.In order to remove the effect of different diesel speeds on average,the multi-sampling-rate method is used.The result of processing the vibration signals of tank cylinder head shows that angle domain average method can improve the signal-to... |
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| Keywords: | diesel engine vibration signal signal-noise-ratio synchronous average multi-sampling-rate analysis |
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