| 基于转速分析的装甲车辆发动机失缸判别方法 |
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| 引用本文： | 乔新勇,刘春华,谢晓阳,张小明. 基于转速分析的装甲车辆发动机失缸判别方法[J]. 兵工学报, 2011, 32(8): 945-949 |
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| 作者姓名： | 乔新勇 刘春华 谢晓阳 张小明 |
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| 作者单位： | (装甲兵工程学院 机械工程系, 北京 100072) |
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| 摘 要： | 为了分析发动机失缸时转速的变化,研究了发动机瞬时转速信号的测取方法,在某型装甲车辆上采用断缸法模拟了失缸故障,测取了发动机正常工作、燃烧不良及失缸工况下的瞬时转速信号.对原始转速脉中信号进行了“0-1”转换,以消除外界噪声干扰.对转速进行了频谱分析,分析了发动机失缸时转速的不规则变化.对转速进行了复杂度分析,提取了K[...
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| 关 键 词： | 动力机械工程 发动机 失缸 瞬时转速 复杂度分析 |
A Method for Recognizing Cylinder Cutout of Armored Vehicle Engine Based on Speed Complexity Analysis |
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| QIAO Xin-yong,LIU Chun-hua,XIE Xiao-yang,ZHANG Xiao-ming. A Method for Recognizing Cylinder Cutout of Armored Vehicle Engine Based on Speed Complexity Analysis[J]. Acta Armamentarii, 2011, 32(8): 945-949 |
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| Authors: | QIAO Xin-yong LIU Chun-hua XIE Xiao-yang ZHANG Xiao-ming |
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| Affiliation: | (Department of Mechanical Engineering, Academy of Armored Forces Engineering, Beijing 100072, China) |
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| Abstract: | In order to get the speed characteristic of engine in misfiring condition,a measuring method for instantaneous speed of engine is researched.The tests are taken on an armored vehicle to simulate the misfire faults in the way of cutting off the fuel,and the instantaneous speed signals are measured in the conditions of normal work,incomplete combustion and misfire.In order to clear the signal noise,the original speed signal is translated into 0-1 series.Fourier analysis is done to show the irregular change of engine speed when engine cylinder is cut out.Furthermore the complexity of the speed signal is analyzed,and K complexity is extracted.The result shows that engine cylinder cut out can be recognized by analyzing the complexity of speed. |
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| Keywords: | power machinery engineering engine cylinder cutout instantaneous speed complexity analysis |
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