台架试验驱动桥振动分析及故障监测

Vibration Analysis And Fault Monitoring Of The Drive Axle In The Bench Test

在台架试验中,通过采样驱动桥的振动信号,对信号进行小波包分解,通过小波包各频段的能量比变化及功率谱图,监测驱动桥的振动来源及失效故障。并介绍小波包分解、重构算法及实际应用效果。

In order to finding out the vibration sources of the drive axle and monitoring the failures, the energy ratio changes of the band wavelet packet and the power spectrum were analysed based on the drive axle vibration signal sampled on the test bench. This paper introduced the method of the wavelet packet decomposition, the reconstruction algorithm and the practical application.