| 小波包降噪在液压泵故障诊断中的应用 |
| |
| 引用本文： | 李志兴,谢向荣,梁述海.小波包降噪在液压泵故障诊断中的应用[J].船海工程,2006,35(2):38-41. |
| |
| 作者姓名： | 李志兴 谢向荣 梁述海 |
| |
| 作者单位： | 海军工程大学船舶与动力学院,武汉,430033 |
| |
| 摘 要： | 基于小波包变换理论及小波包降噪基本原理,对液压泵配流盘偏磨故障及滑靴磨损故障的信号进行了处理,实测信号经小波包降噪后,能有效提取其中的信号特征,实验结果表明,小波包分析能够根据被分析的信号特征,自适应地选择相关的频带,提高信号的时—频分辨率,突出故障信息,实现微弱故障的高效诊断。
|
| 关 键 词： | 小波包变换 液压泵 故障诊断 |
| 文章编号： | 1671-7953（2006）02-0038-04 |
| 收稿时间： | 2005-07-04 |
| 修稿时间： | 2005-11-16 |
The application of wavelet-packet noise reduction for fault diagnose of the hydraulic pump |
| |
| Authors: | LI Zhi-xing XIE Xiang-rong LIANG Shu-hai |
| |
| Institution: | LI Zhi-xing XIE Xiang-rong LIANG Shu-haiSchool of Naval Architecture and Power Naval University of Engineering Wuhan 430033 |
| |
| Abstract: | This paper presents the hydraulic pump fault signal process on the basis of theory of wavelet-packet transform and wavelet-packet noise reduction.By analyzing the signal denoised with wavelet-packet transform,the characteristic of the signal is obtained effectively.The results show that the relevant frequency band adaptively can be chosen by the wavelet-packet according to the characteristic of the analyzed signal,and thus the signal resolution both in time and frequency domain are improved,and the fault information is extracted to diagnose the feebleness fault. |
| |
| Keywords: | wavelet-packet transform hydraulic pump fault diagnosis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
