中文摘要：

利用APDL语言,基于标准齿轮的齿廓渐开线方程和齿根过渡曲线方程,建立某型号减速器精确参数化三维有限元模型。基于接触碰撞算法运用显式动力学程序ANSYS/LS-DYNA在工作站上对整体齿轮箱工作过程进行了仿真计算,准确地得到了齿轮箱内部的应力应变情况以及动态接触过程中的压力分布情况。并将计算结果与传统赫兹理论计算结果进行了比较,验证了该方法的合理性。该方法能从系统的层面,综合考虑齿轮箱各零件动态特性以及相互作用,从而实现对齿轮箱动态特性进行精确的预测和评估。在此基础上考虑各种原始制造误差对齿轮箱动态性能的影响,为齿轮箱整体动态优化设计提供可靠的理论依据。

英文摘要：

A precise parametric three-dimensional finite element model of some speed reducer was created based on involute profile equation and dedendum transition curve equation of master gear adopting APDL language. Digital simulation of the whole speed reducer working process was carried out in ANSYS/LS-DYNA using contact impact algorithm to get accurate stress-strain variety and pressure distribution map of the gear-box during contact process. Rationality of the method was verified by comparing the calculated result of the method with that of the traditional Hertz one. Prediction and evaluation of dynamic characteristic of the gear box were realized by the method which considers dynamic characteristic and interaction of every decelerator part comprehensively from systemic view. On the basis of the mentioned above consideration, influence of various original manufacturing errors on the gear box dynamic performance was considered to provide reliable theoretical basis for whole dynamic optimum design of the gear box.