The Politecnico di Torino rolling bearing test rig: description of the open-access data for vibration monitoring and diagnostics

Accelerometric measurements from the rolling bearing test rig of the Dynamic and Identification Research Group (DIRG), Department of Mechanical and Aerospace Engineering, Politecnico di Torino. Goals: • Vibration Monitoring, Bearing Diagnostics, Damage detection, Damage localization, Damage classification, Damage assessment. Features: • high-speed spindle driving a hollow shaft supported by a couple of identical roller bearings B1 and B3. B1 is the bearing under analysis and features various damages. • two damage types (indentations on a roller and on the inner ring) and severities (0, 150, 250, 450 µm). • a central, larger roller bearing (B2) is loaded through a sledge generating a controlled radial force measured by a load cell. • lubrication is obtained by oil injection into the hollow shaft. • a K-type thermocouple is used to monitor the temperature (manually recorded). • two triaxial accelerometers are mounted on the supports of bearings B1 and B2. Dataset: • stationary acquisitions at different speed & load combinations (speed: 0, 100, 200, 300, 400, 500 Hz; load: 0, 1000, 1400, 1800 N). • endurance acquisitions of the bearing featuring the 450µm roller indentation. Monitoring of the damage evolution for about 230 hours under the same speed and load condition. The extended description of the dataset can be found in the attached pdf "Description and analysis of open access data" or in: A.P. Daga, A. Fasana, S. Marchesiello, L. Garibaldi, The Politecnico di Torino rolling bearing test rig: Description and analysis of open access data, Mechanical Systems and Signal Processing 120 (2019) 252–273. doi:10.1016/j.ymssp.2018.10.010.本数据集源自都灵理工大学（Politecnico di Torino）机械与航空航天工程系动态与辨识研究小组（Dynamic and Identification Research Group，缩写DIRG）的滚动轴承试验台（rolling bearing test rig）加速度测量数据。 研究目标： • 振动监测、轴承故障诊断、损伤检测、损伤定位、损伤分类与损伤评估。 数据集特征： • 高速主轴驱动一根空心轴，该轴由一对相同的滚子轴承B1与B3支撑，其中B1为待测轴承，带有多种类型的损伤。 • 包含两种损伤类型：滚子表面压痕与内圈表面压痕，以及四种损伤严重程度等级：0、150、250、450 µm。 • 中央的大型滚子轴承B2通过重锤施加可控径向载荷，载荷数值由载荷传感器（load cell）测得。 • 润滑方式为向空心轴内部注入润滑油。 • 采用K型热电偶（K-type thermocouple）监测轴承温度，监测数据为手动记录。 • 在轴承B1与B2的支撑座上各安装了一台三轴加速度计（triaxial accelerometer）。 数据集内容： • 针对不同转速与载荷组合的稳态采集数据：转速涵盖0、100、200、300、400、500 Hz；载荷涵盖0、1000、1400、1800 N。 • 针对带有450 µm滚子压痕的轴承开展的耐久试验采集：在相同转速与载荷条件下，对该轴承的损伤演化过程进行了约230小时的持续监测。 本数据集的详细说明可参阅附件PDF "Description and analysis of open access data"，或参阅以下学术论文：A.P. Daga、A. Fasana、S. Marchesiello、L. Garibaldi，《都灵理工大学滚动轴承试验台：开放获取数据的描述与分析》，《机械系统与信号处理》（Mechanical Systems and Signal Processing）120卷（2019年），第252-273页，DOI: 10.1016/j.ymssp.2018.10.010。