| 时频分析方法在往复机械振动特征提取中的应用 |
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| 引用本文： | 张庆华,王太勇. 时频分析方法在往复机械振动特征提取中的应用[J]. 中国制造业信息化, 2002, 31(4): 16-17 |
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| 作者姓名： | 张庆华 王太勇 |
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| 作者单位： | 1. 南京航空航天大学,机电工程学院,江苏,南京,210016
2. 天津大学,机械工程学院,天津,300072 |
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| 摘 要： | 往复机械设备振动的频率随时间变化 ,对这类振动信号的特征分析 ,有助于研究机器设备的运行状况。时频分布描述了信号幅值随时间和频率综合变化的信息。此外研究了典型的时频分析算法———STFT分布 ,比较了时频分析方法和传统信号分析方法的差异 ,并将时频分析方法应用于往复机械振动信号的特征提取
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| 关 键 词： | 时频分析 往复机械 振动 特征提取 |
| 文章编号： | 1007-9483(2002)04-0016-02 |
| 修稿时间： | 2002-01-08 |
Application of Time-frequency Analysis Method in Reciprocating Mechanism Vibration Signal Processing |
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| ZHANG Qing-hua ,WANG Tai-yong. Application of Time-frequency Analysis Method in Reciprocating Mechanism Vibration Signal Processing[J]. Manufacture Information Engineering of China, 2002, 31(4): 16-17 |
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| Authors: | ZHANG Qing-hua WANG Tai-yong |
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| Affiliation: | ZHANG Qing-hua 1,WANG Tai-yong 2 |
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| Abstract: | It was difficult for the vibration signal processing of reciprocating mechanism by the traditional signal analysis methods. This paper introduced the time-frequency analysis method and the algorithm, compared this method with the traditional ones. The STFT method has been successfully applied in vibration signal analysis of reciprocating parts and the changing of the frequency with time is fully described. |
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| Keywords: | Time-frequency Analysis Reciprocating Mechanism |
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