A Study of the Correlation between Gear Wear and Vibration

Abstract

In the paper, the objective of the study is to investigate the correlation between gear wear and vibration analysis. The study is made of two parts, which are theory analysis and experiment analysis. The theory analysis is achieved by analyzing the dynamics equation of a couple of gear. These results of experiments are achieved by investigating eight experiments of simulating gear wear. These experimental gears are different, while the operating conditions of the eight simulating tests are kept the same. These experimental gears are one normal gear, three fault gears simulating three types of pitting corrosion, three fault gears simulating three types of spalling and one fault gear simulating one tooth break. These experimental simulating gear wears are conducted in a test-bed, the normal gear is initially run as a comparative test. Oil samples and vibration data are — collected. After comparing numerical data produced by oil analysis with vibration analysis, the experimental results of the correlation of gear wear and vibration analysis are achieved. At the end, from the theoretical analysis and the experimental results, the preliminary results about the correlation between gear wear and vibration analysis could be achieved, which are as follows: the correlation is not direct proportion if the main influencing factor of gear wear to gear vibration is rotation error; the correlation is direct proportion if the main influencing factor of gear wear to gear vibration is falling-in error.