中文说明：
针对滚动轴承全寿命周期试验数据，采用滑动平均法对原始信号平滑后求其时域特征图，可用于轴承性能退化评估的研究。
English Description：
According to the life cycle test data of rolling bearing, the time domain characteristic diagram is obtained after smoothing the original signal by moving average method, which can be used to evaluate the performance degradation of bearing