| 内燃机故障的多重分形诊断方法研究 |
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| 引用本文： | 夏勇,张振仁,商斌梁,薛模根,郭明芳.内燃机故障的多重分形诊断方法研究[J].中国机械工程,2001,12(Z1):139-141. |
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| 作者姓名： | 夏勇 张振仁 商斌梁 薛模根 郭明芳 |
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| 作者单位： | 第二炮兵工程学院,西安市,710025 |
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| 摘 要： | 实测了6135柴油机气门机构处于不同状态时的缸盖振动信号，计算振动信号的多重分形维数，将其用于刻划缸盖在气门不同状态时表现的非线性行为，从而对故障分类与诊断。结果表明，当气门在不同状态时缸盖振动信号的多重分形维数是不同的，可以将其作为判断气门状态的依据。
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| 关 键 词： | 内燃机 故障诊断 气门机构 多重分形 |
| 文章编号： | 1004-132Ⅹ(2001)S1-0139-03 |
| 修稿时间： | 2000年4月18日 |
Fault Diagnosis for
Internal Combustion Engines by Multifractals |
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| XIA Yong,ZANG Zhenren,SHANG Binliang,XUE Mogen,GUO Minfang.Fault Diagnosis for
Internal Combustion Engines by Multifractals[J].China Mechanical Engineering,2001,12(Z1):139-141. |
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| Authors: | XIA Yong ZANG Zhenren SHANG Binliang XUE Mogen GUO Minfang |
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| Abstract: | Cylinder head vibration signals were measured when the valve train of a six-cylinder, four-stroke diesel engine was in different conditions. Multifractals were computed and were applied to describe the nonlinear behavior of cylinder head in the different fault conditions and classify faults of the valve train. The results show that multifractals of vibration signals of cylinder head were different for different fault conditions and can be used as the characteristics for recognizing the faults of the valve train. |
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| Keywords: | internal combustion engines fault diagnosis valve train multifractal |
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