西储大学数据集，西储大学轴承数据集，用于轴承故障诊断

Bearing Data Center Seeded Fault Test

Data

1.Welcome/Overview

Welcome to the Case Western Reserve University Bearing Data Center Website.

This website provides access to ball bearing test data for normal and faulty bearings.

Experiments were conducted using a 2 hp Reliance Electric motor, and acceleration data was

measured at locations near to and remote from the motor bearings. These web pages are unique

in that the actual test conditions of the motor as well as the bearing fault status have been carefully

documented for each experiment.

into the test motor and vibration data was recorded for motor loads of 0 to 3 horsepower (motor

speeds of 1797 to 1720 RPM).

使用电火花加工（EDM）为电机轴承提供故障。 在内滚道，滚动元件（即滚珠）和外

滚道上分别引入直径为 0.007 英寸至直径为 0.040 英寸的故障。 将故障轴承重新安装到测试

电机中，并记录 0 至 3 马力（电机速度为 1797 至 1720 RPM）的电机负载的振动数据。

2.Project History

Experiments are often required in order to validate new technologies, theories and techniques.

These motor bearing experiments were initiated in order to characterize the performance of IQ

PreAlert, a motor bearing condition assessment system developed at Rockwell. From the time of

this original impetus, the experimental program has expanded to provide a motor performance

动力的时间开始，实验程序已经扩展到提供电动机性能数据库，该数据库可用于验证和/或

改进许多电动机状态评估技术。 最近或正在使用该数据库的一些项目包括：Winsnode 条件

评估技术，基于模型的诊断技术和电机速度确定算法。

3. Apparatus & Procedures

test-stand

As shown in Figure 1 above, the test stand consists of a 2 hp motor (left), a torque

transducer/encoder (center), a dynamometer (right), and control electronics (not shown). The test

bearings support the motor shaft. Single point faults were introduced to the test bearings using

electro-discharge machining with fault diameters of 7 mils, 14 mils, 21 mils, 28 mils, and 40 mils

(1 mil=0.001 inches). See FAULT SPECIFICATIONS for fault depths. SKF bearings were used

0.001 英寸）。 有关故障深度，请参阅故障规格。 SKF 轴承用于 7,14 和 21 密耳直径的故

障，NTN 等效轴承用于 28 密耳和 40 密耳的故障。 轴承规格中列出了驱动端和风扇端轴承

规格，包括轴承几何形状和缺陷频率。

Vibration data was collected using accelerometers, which were attached to the housing with

magnetic bases. Accelerometers were placed at the 12 o’clock position at both the drive end and

fan end of the motor housing. During some experiments, an accelerometer was attached to the

motor supporting base plate as well. Vibration signals were collected using a 16 channel DAT

recorder, and were post processed in a Matlab environment. All data files are in Matlab (*.mat)

format. Digital data was collected at 12,000 samples per second, and data was also collected at

48,000 samples per second for drive end bearing faults. Speed and horsepower data were collected

动记录。