时域平均在行星齿轮箱故障诊断的应用

测取了行星齿轮减速机太阳齿轮故障振动信号，提出了信号时域平均处理的新算法，解决了周期截断误差对平均结果的影响问题，采用时标脉冲技术，时标脉冲信号和振动信号同步采集，有效的确定了平均段数，试验结果表明，该方法在太阳齿轮故障信号的处理中取得了比较理想的效果。

Application of Time-domain Average on Fault Diagnosis of Planetary Gear Box

Time-domain average is a common method of distilling cycle heft that we are interested in from complex cycle signal that get along with yawp. But put in practice, because of cycle truncation error, it can't gain satisfactory effect. This paper measures the fault vibration signal of the sun-gear in planetary gear box. Bring forward a new arithmetic of time-field average which settle the problem of cycle truncation error affect the result of averaging in substance. In order to confirm the figure of average, this paper adopt time-impulse technique to gather the time-impulse and vibration signals in-phase. By analyzing the experimentation, we can draw a conclusion that this method can acquire obvious efforts in dealing the fault signal of sun-gear.