University of Ottawa Ball-bearing Vibration and Acoustic Fault Data under Constant Load and Speed Conditions (UODS-VAFDC)
Description
The dataset provides signals gathered from an accelerometer, a microphone, a load cell, and a hall effect sensor operating under stable loads and speeds. This dataset provides a platform to assess the effectiveness of fault diagnosis techniques under constant conditions. Using this data, various methods can be tested and evaluated for their efficiency in detecting faults. Moreover, the dataset holds great potential in facilitating the application and refinement of deep learning methods. With this resource, researchers can conduct thorough testing to enhance the accuracy and reliability of machine learning methods. The first column provides accelerometer data, the second column is acoustic data, the third column is motor speed, and the fourth column is the load. Each dataset is collected under a constant speed and load. A total of 20 bearings are tested, where each bearing has three associated datasets for three different conditions: healthy, fault developing, and faulty. Therefore, a total of 60 datasets are included. In all cases, the data is sampled at 42,000 Hz, the sampling duration is 10s, and the nominal rotational speed of the bearing is 1,750 RPM. All data collected for healthy bearings, and bearings with inner, outer, or cage faults are collected under a nominal constant load of 400 N. Ball fault data is collected under no load. The datasets are labelled as {Letter}-{Number}-(Number}, where: • The letter represents the bearing’s final condition: H = healthy, I = inner race fault, O = outer race fault, B = ball fault, C = cage fault. • The first number identifies the bearing that is tested. • The second number represents the bearing’s health condition: 0 = healthy, 1 = fault developing, 2 = faulty. • Examples of inner race fault dataset labelling: o I-2-1 means an inner race fault for bearing 2 with a fault developing. o I-2-2 means an inner race fault for bearing 2 that is faulty. o O-6-1 means an outer race fault for bearing 6 with a fault developing. o O-7-2 means an outer race fault for bearing 7 that is faulty.