| 基于车辆总线和Laplace小波的机车轴承诊断系统 |
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| 引用本文： | 杨江天,赵明元.基于车辆总线和Laplace小波的机车轴承诊断系统[J].铁道学报,2011,33(8). |
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| 作者姓名： | 杨江天 赵明元 |
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| 作者单位： | 1. 北京交通大学机械与电子控制工程学院,北京,100044
2. 中国北车集团大同电力机车有限责任公司,山西大同,037038 |
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| 摘 要： | 为保证高速客运机车的行车安全,开发基于车辆总线的机车轴承故障诊断系统,通过车辆总线监测温度和振动信号对机车走行部轴承进行早期诊断和预警。给出诊断系统的硬件结构、软件功能与特点。分析机车轴承振动信号特征,针对故障轴承冲击响应由一系列单边衰减振荡信号组成,轴承故障特征频率包含的能量少且受到噪声干扰的特点,将Laplace小波引入轴承振动信号分析,提出基于Laplace小波相关滤波和包络谱分析提取故障特征频率的机车轴承诊断方法。试验表明,所开发的系统有很强的鲁棒性,能有效诊断机车走行部各种类型的故障。
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| 关 键 词： | 机车 轴承 故障诊断 车辆总线 Laplace小波 |
Fault Diagnosis System for Locomotive Bearings Based on Vehicle Bus and Laplace Wavelet |
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| YANG Jiang-tian,ZHAO Ming-yuan.Fault Diagnosis System for Locomotive Bearings Based on Vehicle Bus and Laplace Wavelet[J].Journal of the China railway Society,2011,33(8). |
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| Authors: | YANG Jiang-tian ZHAO Ming-yuan |
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| Institution: | YANG Jiang-tian1,ZHAO Ming-yuan2(1.School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China,2.CNR Datong Electric Locomotive Co.,Ltd.,Datong 037038,China) |
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| Abstract: | In order to guarantee the running safety of the high-speed passenger locomotive,a novel vehicle-bus-based fault diagnostic system for locomotive bearings is developed.By monitoring real-time temperature and vibration signals through the vehicle bus,initial faults of bearings in the running gears of the locomotive are diagnosed and early warnings are given.The hardware structure,software functions and features of the diagnosis system are presented.Furthermore,the characteristics of locomotive bearing vibrati... |
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| Keywords: | locomotive bearing fault diagnosis vehicle bus Laplace wavelet |
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