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| 峭度分析法在发动机噪声信号故障特征提取中的应用 | |
| 引用本文： | 陈军堂,廖世勇,甘剑锋,米林,达峰.峭度分析法在发动机噪声信号故障特征提取中的应用[J].移动电源与车辆,2011(1):15-18. |
| 作者姓名： | 陈军堂 廖世勇 甘剑锋 米林 达峰 |
| 作者单位： | 1. 重庆通信学院电力工程系,重庆,400035 2. 汽车零部件制造及检测技术省部共建教育部重点实验室重庆工学院,重庆,400050 3. 中国人民解放军68305部队,甘肃,永登,730305 |
| 摘 要： | 将峭度分析法引入发动机噪声信号故障特征提取中。基于连续小波变换对信号时间-尺度特征的细致刻画功能,提出了噪声信号中瞬时特性的峭度敏感特征参数计算方法,对不同转速不同工况下的发动机噪声信号进行了基于尺度-峭度的特征提取。研究结果表明,峭度结合连续小波变换能够很好地提取发动机噪声信号的故障特征。利用连续小波变换的尺度-峭度分析,能够有效提取噪声信号不同转速不同工况下的故障特征,为发动机的状态监测与故障诊断提供了重要的理论和现实依据。 |
| 关 键 词： | 发动机噪声 峭度 连续小波变换 故障特征 |
Application of Kurtosis Analysis on Fault Feature Extraction of Engine Noise Signal |
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| CHEN Jun-tang,LIAO Shi-yong,GAN Jian-feng,MI Lin,DA Feng.Application of Kurtosis Analysis on Fault Feature Extraction of Engine Noise Signal[J].Movable Power Station & Vehicle,2011(1):15-18. | |
| Authors: | CHEN Jun-tang LIAO Shi-yong GAN Jian-feng MI Lin DA Feng |
| Institution: | CHEN Jun-tang1,LIAO Shi-yong1,GAN Jian-feng1,MI Lin2,DA Feng3(1.Department of Electric Power Engineering,College of Chongqing Communication,Chongqing 400035,China,2.Key Lab.of Manufacture and Test Techniques for Automobile Parts of Educational Ministry,Chonqing University of Technology,Chongqing 400050,3.68305 Troops of PLA,Gansu Prov.,Yongdeng 730305,China) |
| Abstract: | Kurtosis analysis was introduced to fault feature extraction of engine noise signal in this paper.The calculation method of sensitive feature parameter of kurtosis to instantaneous feature was proposed based on meticulous depiction of time-scale feature of continuous wavelet transform(CWT) and then the feature of engine noise under different working condition and speed was extracted by scale-kurtosis.The results showed that the fault feature can be effectively extracted by the combination of kurtosis and CW... |
| Keywords: | engine noise kurtosis continuous wavelet transform fault feature |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |