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| 水泵轴承振动信号的时频分析 | |
| 引用本文： | 彭桂兰,郭兰珂,王旭东,张国珍,陈贤源.水泵轴承振动信号的时频分析[J].农业机械学报,2001,32(5):47-49. |
| 作者姓名： | 彭桂兰 郭兰珂 王旭东 张国珍 陈贤源 |
| 作者单位： | 1. 塔里木农垦大学农业工程学院副教授 2. 重庆邮电学院硕士生 3. 塔里木农垦大学农业工程学院讲师 4. 西南农业大学农业工程学院副教授 |
| 摘 要： | 对磁电式速度传感器采集的水泵轴承振动信号分别进行了短时傅立叶变换，小波变换，小波包变换，其结果表明：小波包变换提高了中高频带的频率分辨率，克服了短时傅立叶变换和小波变换的缺点，小波包变换有利于提取轴承故障特征，它能准确地诊断水泵机组轴承的故障。 |
| 关 键 词： | 水泵 轴承 振动 信号分析 故障 |
| 修稿时间： | 2000年11月9日 |
Time-frequency Analysis of Vibrating Signals of Pump Bearings |
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| Peng Guilan,Wang Xudong.Time-frequency Analysis of Vibrating Signals of Pump Bearings[J].Transactions of the Chinese Society of Agricultural Machinery,2001,32(5):47-49. | |
| Authors: | Peng Guilan Wang Xudong |
| Institution: | Peng Guilan Wang Xudong(Tarim University of Agricultural Reclamation) Guo Lanke(Chongqing Institute of Post and Telecommunication) Zhang Guozhen Chen Xianyuan(Southwest Agricultural University) |
| Abstract: | The vibrating signals collected from pump bearings by a velocity sensor were analyzed with short time Fourier transform(STFT), wavelet transform(WT) and wavelet packet transform(WPT) in the paper. The results indicated that the WPT improved the distinguish ratio of middle high frequency band, overcomed the shortcoming of the STFT and the WT. It suits for feature extraction fault characteristic of bearing fault diagnosis and can also promptly and accurately diagnose the fault of a pump bearing. |
| Keywords: | Pumps Bearing Vibration Signal analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |