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1·The formulas for calculating 3-axis, double composite gear with addendum modification are derived. Then in this paper the object functions -and restrained conditions for optimum design are discussed.

本文推导了采用修正齿轮时三轴双公用齿轮机构的计算公式。并讨论了双公用齿轮机构优化设计的目标函数和约束条件。

2·The convenience of addendum modeling and modification is an important access to improve design efficiency.

工艺补充曲面设计和修改的便利性，是提高设计效率的重要途径。