Ims
IMS dataset.
Test-to-failure experiments on bearings. The data set was provided by the Center for Intelligent Maintenance Systems (IMS), University of Cincinnati.
Description¶
An AC motor, coupled by a rub belt, keeps the rotation speed constant. The four bearings are in the same shaft and are forced lubricated by a circulation system that regulates the flow and the temperature. It is announced on the provided “Readme Document for IMS Bearing Data” in the downloaded file, that the test was stopped when the accumulation of debris on a magnetic plug exceeded a certain level indicating the possibility of an impending failure. The four bearings are all of the same type. There are double range pillow blocks rolling elements bearing.
Three data sets are included in the data packet. Each data set describes a test-to-failure experiment. Each data set consists of individual files that are 1-second vibration signal snapshots recorded at specific intervals. Each file consists of 20,480 points with the sampling rate set at 20 kHz. The file name indicates when the data was collected. Each record (row) in the data file is a data point. Data collection was facilitated by NI DAQ Card 6062E. Larger intervals of time stamps (showed in file names) indicate resumption of the experiment in the next working day.
For more details, see the description pdf file included in the downloaded data.
Homepage¶
https://www.nasa.gov/content/prognostics-center-of-excellence-data-set-repository
https://data.phmsociety.org/nasa/
https://phm-datasets.s3.amazonaws.com/NASA/4.+Bearings.zip
https://www.kaggle.com/datasets/vinayak123tyagi/bearing-dataset
Original Dataset¶
- Type of experiments: run-to-failure
- Year of acquisition: 2003-2004
- Format: text
- Sampling rate: 20480 Hz
- Channels: 8 for set 1 (2 per bearing), 4 for set 2, 4 for set 3 (1 per bearing)
- Recording duration: ~ 1 second
- Size: ~ 6.1 Gb, unzipped
Notes¶
- The original dataset contains a folder named
4th_test, which corresponds actually to the 3rd test. This has been corrected in the zip file uploaded to Zenodo.
IMS
¶
Bases: tfds.core.GeneratorBasedBuilder