Bearing Vibration Data under Time-varying Rotational Speed Conditions

The data contain vibration signals collected from bearings of different health conditions under time-varying rotational speed conditions. There are 36 datasets in total. For each dataset, there are two experimental settings: bearing health condition and varying speed condition. The health conditions of the bearing include (i) healthy, (ii) faulty with an inner race defect, and (iii) faulty with an outer race defect. The operating rotational speed conditions are (i) increasing speed, (ii) decreasing speed, (iii) increasing then decreasing speed, and (iv) decreasing then increasing speed. Therefore, there are 12 different cases for the setting. To ensure the authenticity of the data, 3 trials are collected for each experimental setting which results in 36 datasets in total. Each dataset contains two channels: 'Channel_1' is vibration data measured by the accelerometer and 'Channel_2' is the rotational speed data measured by the encoder. All these data are sampled at 200,000Hz and the sampling duration is 10 seconds.

本数据集收录了在不同健康状况下、旋转速度变化条件下的轴承振动信号。数据集总量共计36个。针对每个数据集，均包含两种实验设置：轴承健康状况和速度变化条件。轴承的健康状况包括：（一）健康状态；（二）存在内圈缺陷的故障状态；（三）存在外圈缺陷的故障状态。运行旋转速度条件包括：（一）增速；（二）减速；（三）先增速后减速；（四）先减速后增速。因此，实验设置共有12种不同情况。为确保数据的真实性，每个实验设置均采集了3次试验，总计形成36个数据集。每个数据集包含两个通道：'Channel_1'为加速度计测量的振动数据，'Channel_2'为编码器测量的旋转速度数据。所有数据均以200,000Hz的采样率进行采样，采样时长为10秒。