有限元法计算齿轮接触强度的理论研究

根据齿轮展成加工原理，导出了渐开线齿廓方程及主、从动齿轮啮合位置方程，应用有限元法，编制了考虑内、外啮合方式并计及轮体结构的有限元建模程序，通过数据格式转化，自动生成可被ＡＤＩＮＡ分析程序直接调用的接触强度计算模型数据文件。对６个算例进行了数值模拟计算，将其结果与传统计算方法和实测结果进行了比较，结果证明本文提出的计算方法更接近实际工况。

A THEORETICAL STUDY ON CONTACT STRENGTH OF GEARS WITH FINITE ELEMENT METHOD

In order to evaluate gear contact strength precisely, based on the gear generation theory with finite element method (FEM), this paper develops a tooth profile generation method and drive gear position formula. FEM model program including interouter meshing method and gear structure is also developed. The model date file used by ADINA analysis program is generated automatically and the gear contact strength is calculated with FEM model creation and ADINA analysis program. The calculated FEM result is compared with calculated result of traditional method and measured one, the results prove that FEM is much better than traditional method.