中文说明：
该算法是基于小波包变换能量率--BP神经网络进行机械轴承故障分析，提供了3种轴承故障及正常运营数据，包括Normal.mat 正常轴承数据 +Inner.mat 内圈故障数据+Outer.mat 外圈故障数据+Ball.mat 滚动体故障数据。
English Description：
The algorithm is based on wavelet packet transform energy rate BP neural network for mechanical bearing fault analysis, which provides three kinds of bearing fault and normal operation data, including Normal.mat Normal bearing data+ Inner.mat Inner ring fault data+ Outer.mat Outer ring fault data+ Ball.mat Rolling element fault data.