小波包分析方法在齿轮箱振动信号处理中的应用

The Utilization of the Analytical Method of Small-Wave-Packet in Dealing with Vibration Signals in Gear Box

对齿轮箱的振动及振动信号进行了分析,利用小波分析原理及小波包分解故障信号,抽取与故障有关的几个频段进行重构,剔除了主振动分量和干扰项,从而使故障特征信号从复杂的振动信号中分离出来.

By virtue of the analytical principle of smallwave and the fault signals decomposed from smallwavepacket,some frequency channels relative to the faults are extracted and restructured,the component of main vibration and the interfering terms are rejected, so that the characteristic signals of the fault are separated from complex vibration signals. 