中文摘要：

基于CAD/CAE工具与方法,提出一种基于有限元软件定量计算修形齿轮啮合刚度、重合度等性能参数的计算方法,通过数值计算结果阐明修形齿轮修形量与啮合刚度等等定量关联规律。基于有限元准静态分析和齿轮啮合刚度计算原理给出修形齿轮啮合刚度计算公式,解决修形齿轮动力学研究中的刚度计算问题,给出微米级齿轮修形参数对轮齿啮合刚度的影响规律。研究结果表明：利用该计算方法所得结果与FE软件计算结果相吻合,为科学、合理地选择与评价齿轮修形参数提供一种解决方法,为高性能齿轮设计提供参考。

英文摘要：

The contact ratio and meshing stiffness of the tooth of modification gear were studied. A three-dimensional model of the modification gear was established based on the parameters of the modification including gear addendum amount of modification, modification length and repair-shaped curve. Through the finite element quasi-static analysis principle, the gear meshing stiffness calculation method was proposed based on the finite element numerical calculation.The relationship between the modification parameters（addendum amount, modification length, load） and the mesh stiffness of the modification gear was given. The results show that the calculation results obtained by the proposed method are consistent well with the calculation results obtained by FE software. The gear mesh stiffness calculation method provides a technical way to get the mesh stiffness of gear considering error and the amount of modification.