Rotor & bearing vibration dataset

Rotor and bearing vibration of a large flexible rotor (a tube roll) were measured. This dataset consists of over 5000 samples each containing 100 rounds of measured data. During the measurement, the rotating speed of the rotor was varied between 4 Hz and 18 Hz and the horizontal foundation stiffness was varied between 2.04 MN/m and 18.32 MN/m. Data sampling events were triggered with a rotary encoder 1024 times per revolution. The data in this dataset has been resampled to 2000 Hz. Rotor vibration is expressed as the center-point motion of the middle cross-section calculated from four displacement signals with a four-point error separation method. Four-point error separation method is further explained by Tiainen & Viitala (2020). Bearing vibration is expressed in terms of radial bearing forces. Measurement setup and procedure is explained by Viitala & Viitala (2020). Each 100-round sample consists of 8 time-series signals. In each 100-round sample the columns indicate same signals: - column 1 is the horizontal center-point movement in the middle cross-section of the rotor - column 2 is the vertical center-point movement in the middle cross-section of the rotor - column 3 is the horizontal force at bearing housing 1 - column 4 is the first vertical force at bearing housing 1 - column 5 is the second vertical force at bearing housing 1 - column 6 is the horizontal force at bearing housing 2 - column 7 is the first vertical force at bearing housing 2 - column 8 is the second vertical force at bearing housing 2 There are two vertical force signals for both bearing housings because two force sensors were placed under both bearing housings. The vertical resultant force can be solved by adding the vertical force signals of the corresponding bearing housing together. Each 100-round sample is in a separate file. Each file has been named with the following convention: “Nominal rotating speed_nominal horizontal support stiffness_measured rotating speed.csv”.

本数据集针对大型柔性转子（管形轧辊）的转子与轴承振动进行了采集。
本数据集包含超过5000个样本，每个样本均包含100组实测数据。
采集过程中，转子转速在4 Hz至18 Hz范围内变化，水平基础刚度则在2.04 MN/m至18.32 MN/m之间调节。
数据采样由旋转编码器触发，每旋转一周完成1024次采样。
本数据集已将原始数据重采样至2000 Hz。
转子振动通过四点误差分离法（four-point error separation method）由四路位移信号计算得到的转子中段横截面中心点运动来表征。
四点误差分离法的详细说明可参考Tiainen与Viitala（2020）的研究。
轴承振动则通过径向轴承力来表征。
试验装置与采集流程的详细说明可参考Viitala与Viitala（2020）的研究。
每个包含100组数据的样本包含8路时间序列信号。
在每个100组数据的样本中，各列对应如下信号：
- 第1列：转子中段横截面的水平中心点运动
- 第2列：转子中段横截面的垂向中心点运动
- 第3列：1号轴承座的水平受力
- 第4列：1号轴承座的第一路垂向受力
- 第5列：1号轴承座的第二路垂向受力
- 第6列：2号轴承座的水平受力
- 第7列：2号轴承座的第一路垂向受力
- 第8列：2号轴承座的第二路垂向受力
每个轴承座均设置两路垂向受力信号，原因是每个轴承座下方均安装了两台力传感器。
可通过将对应轴承座的两路垂向受力信号相加，得到合成垂向受力。
每个包含100组数据的样本均存储于独立文件中。
各文件的命名遵循以下格式："额定转速_额定水平支撑刚度_实测转速.csv"

搜集汇总

背景与挑战

背景概述

该数据集是一个大型柔性转子（管辊）的转子与轴承振动数据集，包含超过5000个样本，每个样本有100圈测量数据，数据采样频率为2000 Hz。测量时转子转速在4 Hz至18 Hz之间变化，水平基础刚度在2.04 MN/m至18.32 MN/m之间变化，每个样本包含8个时间序列信号，分别对应转子中心点运动和轴承力，文件按标称转速、刚度和实测转速命名。