A New Intelligent Fault Diagnosis Method of Rotating Machinery under Varying-Speed Conditions Using Infrared Thermography

Algorithm 1

Steps for the thermal image acquisition.

Step 1: Select health condition

Step 2: The initial temperature of test rig is set to the environment temperature (C in this paper)

Step 3: Heat up the test rig under the constant speed of 3000rpm

Step 4: When the highest temperature of test rig achieves a given temperature (C in this paper), use the thermal

camera to acquire the thermographs under the varying-speed conditions (accelerated from 900rpm to 3000rpm)

Step 5: Cool down the test rig to the environment temperature

Step 6: Select another healthy condition and repeat the steps 1-5 until all the healthy condition collected.