摘要
从小波变换的理论背景出发,介绍了利用小波变换对信号进行分解的原理。针对变速器齿轮振动信号的非平稳性特点,通过对变速器齿轮振动信号用db4小波进行了多分辨分析,说明这种方法可以有效地对变速器齿轮故障进行诊断。
The theory of decomposing the signal with wavelet transform is introduced based on the fundamental principle of wavelet transform. Aimed at the non-stationary character of transmission gear vibration signal,Multi-Resolution Analysis is adopted to the vibration signal of transmission gear signal with the db4 wavelet.It is illustrated that the wavelet transform has get obvious effect in automobile transmission gear fault diagnosis.
出处
《汽车科技》
2007年第1期23-26,共4页
Auto Sci-Tech
关键词
小波
齿轮振动
多分辩分析
故障诊断
wavelet
gear vibration
multi-resolution analysis
fault diagnosis.
