DOI: 10.5281/zenodo.17653852
title: Rotating Machinery Vibration Dataset for Bearing and Unbalance Faults (ISAC Lab Dataset)

description: BF Dataset Description

Acquired Data:



Data for noise estimation were recorded for 20 seconds during both shutdown and startup conditions.

For the healthy condition, data were recorded twice, each for 60 seconds.

Healthy condition data were collected at frequencies of 10, 20, 30, 40, and 50 Hz.

During healthy condition measurements, the shaft had a misalignment of 0.02 mm in both the Z and Y directions.

The data acquisition frequency was 10,000 Hz (ten thousand samples per second).


Faulty Data:      Data were collected for three fault categories: unbalance fault, outer race fault, and ball fault.

1. Unbalanced Fault



Unbalanced fault data were recorded at frequencies of 10 Hz and 30 Hz.

Disk labels range from 1, representing the largest disk, to 6, representing the smallest disk.

The data files follow the naming convention: Acquisition_un_[disk label]_Hz


    1.1  Combined Unbalanced            In this case, unbalance was applied to disk 1 and disk 4.

·           Data file name format:            Acquisition_un_1_4_Hz

2. Outer Race Fault

    2.1  Defective bearing mounted in place of the third bearing

            Recorded at two frequencies: 10 Hz and 30 Hz.

            File name: Acquisition_ out _bearing label_Hz

    2.2  Defective bearing mounted in place of the second (middle) bearing

            Recorded at two frequencies: 10 Hz and 30 Hz.

            File name: Acquisition_out_ bearing label _Hz

    2.3. Defective bearing mounted in place of the first bearing

            Recorded at two frequencies: 10 Hz and 30 Hz.

            File name: Acquisition_out_ bearing label _Hz

3. Ball Fault

     3.1. Defective bearing mounted in place of the first bearing

            Recorded at two frequencies: 10 Hz and 30 Hz.

            File name: Acquisition_ballfault_ bearing label _Hz

     3.2. Defective bearing mounted in place of the second (middle) bearing

            Recorded at two frequencies: 10 Hz and 30 Hz.

             File name: Acquisition_ballfault_ bearing label _Hz

     3.3. Defective bearing mounted in place of the third bearing

             Recorded at two frequencies: 10 Hz and 30 Hz.

             File name: Acquisition_ballfault_ bearing label _Hz

 

Data Partitioning:

    Data were collected from a rotating machine under both shutdown and startup conditions (20 s, for noise estimation) and in healthy conditions (60 s, repeated twice) at operating frequencies of 10, 20, 30, 40, and 50 Hz. In the healthy state, a    shaft misalignment of 0.02 mm (20 µm) was present in the Z and Y directions, and the sampling frequency was 10,000 Hz. Faulty data were acquired in three categories: unbalance fault, outer race fault, and ball fault. Unbalance was applied individually on disks labeled from 1 (largest) to 6 (smallest), as well as in a combined case on disks 1 and 4, at 10 and 30 Hz. Outer race faults were introduced by replacing the first, second (middle), or third bearing with a defective one, also at 10 and 30 Hz. Ball faults were similarly introduced by replacing the first, second, or third bearing with a defective one, again at 10 and 30 Hz. Each dataset includes signals from six sensors, and the file naming convention follows the format DataSensornumberofsensor_number of fault. Finally, each sensor signal was segmented into ten portions of 6 s duration for analysis.

The structure of test bench and fault configurations are shown in this figure. 

Reference:

https://doi.org/10.1080/23307706.2025.2567006