One Approach on the Axle Gear Noise Generated from the Torsional Vibration

Many papers have discussed that the axle gear noise is largely affected by the torsional vibration of the driveline. In the authors' view, however, the theoretical results do not necessarily coincide with the experimental ones. Namely, while theoretical analysis shows no difference in the peak frequency between the acceleration noise and the overrun noise, experiments do show some difference.

The authors considered that these phenomena are dependent on the stiffness of the bearings of the pinion and ring gear.

Simulating an idealized model which represents the torsional vibration of the driveline, study was made on the analogy of the theoretical results to the experimental ones.