Vibration Data for Axial Ball Bearings and Spall Faults

The datasets involve vibration measurements for axial ball bearings in healthy and faulty conditions. The faulty conditions are for artificially-seeded spall defects at the outer and the inner races. There are 28 datasets in two groups. The first group is for a fault-free condition and it consists of four datasets. The second group involves 24 datasets for six levels of fault-sizes and four loading groups. The file is a standard MATLAB data file ".mat". The file name for each dataset follows the following format: (NX_R_S_T.mat), where X indicates the applied axial load in kN, R is the spindle speed in revolutions per minute, S is the spall fault width in millimeters and T is the spall location on the outer or the inner races. Each dataset has a single time series for the axial vibration from an accelerometer mounted on the bearing outer race (radial axis). Both of the spindle speed and the axial load are time invariant within the dataset. All datasets are sampled at 25.6 kHz for a duration of 30 seconds.

本数据集涵盖健康与故障状态下的轴向滚珠轴承振动测量数据。其中故障状态指人为在轴承外圈与内圈预制的剥落缺陷。本次数据集共包含28组样本，分为两大组别：第一组为无故障状态样本，共计4组数据；第二组共包含24组数据，对应6种剥落故障尺寸等级与4种载荷工况组别。数据集文件为标准MATLAB数据文件（.mat格式）。各数据集的文件名遵循如下格式：(NX_R_S_T.mat)，其中X代表施加的轴向载荷（单位：千牛，kN），R为主轴转速（单位：转每分钟），S为剥落故障宽度（单位：毫米），T为剥落缺陷在轴承外圈或内圈的位置。每组数据集均包含一组由安装在轴承外圈（径向轴）上的加速度计采集的轴向振动时间序列。在单组数据集内，主轴转速与轴向载荷均保持恒定。所有数据集的采样频率均为25.6 kHz，单组数据采集时长为30秒。

搜集汇总

背景与挑战

背景概述

该数据集提供轴向球轴承在健康和故障状态下的振动测量数据，重点关注外圈和内圈人为剥落缺陷。它包含28个数据集，涵盖无故障条件以及不同故障大小和加载组，采样频率为25.6 kHz，持续30秒，用于分析轴承故障特征。