研究了小波包在处理富气压缩机振动故障信号中的应用
小波包分析比小波算法更能有效地对上一层信号的低频和高频段进行细分
油膜涡动和油膜振动的小波包变换及归一化能量表明
) 摘要: 运用小波包分析的基本原理
小波包变换既能有效地降低噪声
) Abstract: The paper uses the basic principle of wavelet packet analysis, wavelet packet processing applications in the rich gas compressor vibration fault signal, the compressor rotor in normal and unbalanced state oil whirl and oil film vibration wavelet packet transform and Normalized energy of wavelet packet analysis of a smaller wave algorithm more effectively subdivide the layer of low-frequency and high-frequency part of the signal, and more precise local analysis, wavelet packet transform can effectively reduce noise, and can accurately determine the fault, with excellent time-frequency analysis features, and very practical
Keywords: Wavelet packet;compressor ; filter ; vibration signal 下载PDF阅读器 PDF全文下载: 修改稿 1( 9 ) 初稿 ( 18 ) 作者简介: 杨明轩 1964年 男 副教授 机械制造技术的教学与研究 通信联系人: 【收录情况】 中国科技论文在线: 杨明轩
小波包分析的富气压缩机振动信号研究[EB/OL]
北京:中国科技论文在线
振动信号 Yang min-xuan * ( Department of mechanical and electrical engineering NanChong Professional Technical College Nan Chong 637000