Investigation on the Influence of Dynamic Tooth Wear on Gear Dynamic Characteristics

In order to study the effect of tooth surface wear on gear dynamics, based on the Archard wear model, considering the dynamic load distribution between teeth under the geometrical normal clearance and influence of the contact point on the tooth profile points in the surrounding area, an accurate wear model of tooth surface is established and the dynamic characteristics of gear are analyzed by coupling the wear of gear surface into the gear dynamics model, and a dynamic wear calculation model of gear surface is established. The results indicate that early wear has little effect on gear dynamics, with the increase of wear cycle, the vibration of the non-resonant region is increased, while in the resonance region first invariant and then increased.