| 基于时间序列与小波分析的船舶柴油机故障诊断 |
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| 引用本文： | 王家宏,张仕海.基于时间序列与小波分析的船舶柴油机故障诊断[J].船舶工程,2009,31(3). |
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| 作者姓名： | 王家宏 张仕海 |
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| 作者单位： | 1. 浙江海洋学院海运学院,舟山,316004
2. 天津海运职业学院,天津,300457 |
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| 摘 要： | 模拟柴油机气阀间隙异常的几种情况,并实时监测柴油机缸盖振动信号.采用时间序列分析方法对船舶柴油机缸盖振动信号功率谱进行识别,采用小波变换方法对各信号进行小波包分解,并提取故障特征频段信号进行功率谱估计,实现精确故障诊断.
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| 关 键 词： | 船舶柴油机 时间序列分析 小波分析 气阀间隙 故障诊断 |
Fault diagnosis of marine diesel engine based on time series and wavelet analysis |
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| WANG Jia-hong,ZHANG Shi-hai.Fault diagnosis of marine diesel engine based on time series and wavelet analysis[J].Ship Engineering,2009,31(3). |
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| Authors: | WANG Jia-hong ZHANG Shi-hai |
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| Institution: | WANG Jia-hong1,ZHANG Shi-hai2 (1. Institute of maritime transport,Zhejiang Ocean University,Zhoushan 316004,China,2. Tianjin Maritime Vocational Institute,Tianjin 300457,China) |
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| Abstract: | Under several different valve clearances of diesel engine,the cylinder cover vibration signals have been measured. Time series analysis was applied to estimate power spectrum for these signals. And wavelet transform was applied to these signals decomposing,and some frequency band signals,including some fault character message,power spectrums been estimated to realize more accurate diesel engine fault diagnosis. |
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| Keywords: | marine diesel engine time series analysis wavelet analysis valve clearance fault diagnosis |
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