| 基于相关分析与小波变换的齿轮箱故障诊断 |
| |
| 引用本文： | 袁佳胜,冯志华.基于相关分析与小波变换的齿轮箱故障诊断[J].农业机械学报,2007,38(8):120-123. |
| |
| 作者姓名： | 袁佳胜 冯志华 |
| |
| 作者单位： | 中国科学技术大学精密机械与精密仪器系,230027,合肥市 |
| |
| 摘 要： | 针对大型机械工作噪声大,测取的振动信号信噪比很低,特征信号频率较高,信号消噪难度大,故障特征信号难以提取的问题,提出了一种基于相关性分析与小波变换相结合的故障诊断方法。该方法利用了相关函数降噪特性和小波多分辨特性,达到有效提取有用信号的目的。通过仿真与实验,证明这种方法能有效去除噪声,对故障特征信号有很强的提取能力。
|
| 关 键 词： | 齿轮箱 故障诊断 相关分析 小波变换 |
| 修稿时间： | 2006-05-26 |
Fault Diagnosis Research Based on Correlation and Wavelet for Gears |
| |
| Yuan Jiasheng,Feng Zhihua.Fault Diagnosis Research Based on Correlation and Wavelet for Gears[J].Transactions of the Chinese Society of Agricultural Machinery,2007,38(8):120-123. |
| |
| Authors: | Yuan Jiasheng Feng Zhihua |
| |
| Institution: | University of Science and Technology of China |
| |
| Abstract: | When a large machine is working,the signal-to-noise ratio(SNR) of its vibration signal is very low and the frequency of characteristic signal is very high.The signal is overwhelmed by strong background noise,so it is difficult to pick it up.A new diagnosis method by using correlation analysis and wavelet transform was introduced.The correlation function has been used to suppress the noise and the wavelet for multi-resolution analysis.The effectiveness of suppressing noise and robust ability of detecting fault feature by using this method have been proved by both simulation and experiments done on a gun-automaton gearbox. |
| |
| Keywords: | Gearbox Fault diagnosis Correlation analysis Wavelet transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《农业机械学报》浏览原始摘要信息 |
| 点击此处可从《农业机械学报》下载免费的PDF全文 |
