| 广义解调时频分析方法在变速器齿轮故障诊断中的应用 |
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| 引用本文： | 舒浩华,于德介.广义解调时频分析方法在变速器齿轮故障诊断中的应用[J].汽车工程,2009,31(3). |
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| 作者姓名： | 舒浩华 于德介 |
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| 作者单位： | 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金，中国博士后科学基金 |
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| 摘 要： | 针对故障齿轮振动信号多表现为多分量调幅一调频特征的状况,将广义解调时频分析方法应用于齿轮的非平稳振动信号处理,得到齿轮振动信号的时频分布,正常和故障状态下振动信号的时频分布区别明显.实验分析结果表明,广义解调时频分析方法优于其它时频分析方法,能有效地应用于齿轮非平稳振动信号的分析.
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| 关 键 词： | 变速器 齿轮 故障诊断 广义解调 时频分析 |
The Application of Generalized Demodulation Time-frequency Analysis to Fault Diagnosis of Transmission Gear |
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| Shu Haohua,Yu Dejie.The Application of Generalized Demodulation Time-frequency Analysis to Fault Diagnosis of Transmission Gear[J].Automotive Engineering,2009,31(3). |
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| Authors: | Shu Haohua Yu Dejie |
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| Institution: | Shu Haohua & Yu DejieHunan University,State Key Laboratory of Advanced Design , Manufacturing for Vehicle Body,Changsha 410082 |
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| Abstract: | Based on the fact that the most vibration signals of faulty gear show the feature of multi-component amplitude-modulation and frequency-modulation(AM-FM),the method of generalized demodulation time-frequency analysis is used in processing non-stationary vibration signals of gear to obtain the time-frequency distribution of gear vibration signals,which under faulty state is quite different from that under normal state.The experimental results demonstrate that the generalized demodulation time-frequency analy... |
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| Keywords: | transmission gears fault diagnosis generalized demodulation time-frequency analysis |
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