In this study, the effects of the gear tooth addendum and dedendum on the optimization results for gear macro geometry design were evaluated. First, gear optimization using macro design variables was performed, excluding tooth addendum and dedendum parameters. Subsequently, the optimization, including the addendum and dedendum variables, was performed by applying the same addendum and dedendum lengths to the pinion and wheel. Finally, the gear optimization using different addendum and dedendum lengths for the pinion and wheel was completed. The gear mass, gear mesh efficiency, and transmission errors were considered as objective functions for optimization. The optimization results were min-max normalized, and the average values of the total scores were compared. The results show that the average score of the optimization considering only the main design variables was 2.7085 points and that considering the addendum and dedendum was 2.7829 and 2.8830 points, respectively, from a maximum possible score of 3.000 points. Hence, a gear macro design with better performance could be established by considering the tooth addendum and dedendum.

在这项研究中，评估了齿轮齿顶和齿根对齿轮宏观几何设计优化结果的影响。首先，使用宏观设计变量进行齿轮优化，不包括齿根和齿根参数。随后，优化，包括齿顶和齿根变量，通过将相同的齿顶和齿根长度应用于小齿轮和车轮来执行。最后，完成了对小齿轮和车轮使用不同齿顶和齿根长度的齿轮优化。齿轮质量、齿轮啮合效率和传动误差被认为是优化的目标函数。对优化结果进行min-max归一化，比较总分的平均值。结果表明，仅考虑主要设计变量的优化平均得分为 2.7085 分，考虑增补和增补的平均分分别为 2.7829 和 2.8830 分，最大可能得分为 3.000 分。因此，可以通过考虑齿顶和齿根来建立具有更好性能的齿轮宏观设计。