| 基于EMD理论的等角度重采样方法在凸轮轴故障诊断中的应用 |
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| 引用本文： | 杨翠丽,秦荣,杜灿谊.基于EMD理论的等角度重采样方法在凸轮轴故障诊断中的应用[J].车用发动机,2011(6):81-84. |
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| 作者姓名： | 杨翠丽 秦荣 杜灿谊 |
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| 作者单位： | 华南理工大学机械与汽车工程学院,广东广州,510640 |
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| 基金项目： | 广东省自然科学基金资助项目 |
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| 摘 要： | 将一种无转速测量信号,基于希尔伯特—黄变换等角度重采样的阶次分析方法应用于发动机凸轮轴故障诊断,从而有效消除转速波动的影响,使信号处理与分析结果更加准确.应用所提出的方法对某6缸柴油机缸体振动信号进行分析,对比凸轮轴轴瓦断裂修复前后振动信号特征的变化,有效地提取出了故障特征.
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| 关 键 词： | 柴油机 等角度重采样 故障诊断 |
The Application of Constant Angle Re-sampling Method in Camshaft Fault Diagnosis Based on EMD Theory |
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| YANG Cui-li,QIN Rong,DU Can-yi.The Application of Constant Angle Re-sampling Method in Camshaft Fault Diagnosis Based on EMD Theory[J].Vehicle Engine,2011(6):81-84. |
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| Authors: | YANG Cui-li QIN Rong DU Can-yi |
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| Institution: | (School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | The order analysis method based on the Hilbert-Huang transformation constant angle re-sampling was applied to the fault diagnosis of camshaft,the disturbance of speed was effectively eliminated and the signal processing and analysis results were improved.By analyzing the vibration signal of a 6-cylinder diesel engine and comparing the variation of vibration signal before and after the camshaft bearing fracture repair,the fault characteristics were extracted effectively. |
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| Keywords: | diesel engine constant angle re-sampling fault diagnosis |
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