Optimization of Gears Based on FFD for Vibration Reduction and Load Equalization

In view of the inevitable vibration, impingement and deflection during the meshing process due to manufacturing and installation errors, gear elasticity and thermal deformation, resulting in low gear efficiency and life, the helix shaping optimization is carried out with a typical external meshing straight cylindrical gear by using virtual simulation verification. The results show that the optimized gear surface stress distribution is 78.31% more evenly loaded, the transmission error is 41% lower, and the helix load distribution coefficient is 39.3% lower, which is close to 1. It can be seen that helix shaping can significantly improve the helix deviation caused by a combination of various factors, improve the transmission state and improve the meshing quality.

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