Gear Box Performance Test Based on Threshold Relevance Degree

Standard normal patterns for gear boxes were established with statistical method and by analyzing vibration signals acquired from the gear boxes with a vibration acceleration sensor. Then the threshold relevance degree between the vibration signals and the standard normal patterns was calculated. Experimental result on a wheel box shows that the calculated threshold relevance degree is a good parameter to reflect the performance of the gear box under experiment. The whole test can be conducted with the help of a computer.