齿轮传动的三维建模及有限元静力学分析

摘要

以某减速器的齿轮传动为例, 利用 Pro/E 创建齿轮传动的三维实体模型.通过Pro/E与ANSYS软件的连接, 将模型导入 ANSYS 中, 形成相应的有限元模型, 对一定载荷作用下齿根弯曲应力进行有限元分析, 得出了齿轮变形及应力分布情况.提出了精确、迅速计算齿根弯曲应力的方法, 较常规的计算方法得到的结果更为可靠, 为齿轮传动的可靠性设计提供理论依据和方法.%Taking the gear drive of a reducer as an example, the 3d model of gear drive is created by using Pro/E. Through the connection of Pro/E and ANSYS software, the model is imported into ANSYS, and the corresponding finite element model is formed to analyze the stress of the tooth root, and the gear deformation and stress distribution is obtained. A precise and rapid method to calculate the root bending stress is put forward, which is more reliable than the conventional calculation method, and provides theoretical basis and method for the reliability design of gear transmission.