考虑误差的行星齿轮啮合力仿真

The Meshing Force Simulation of Planetary Gear Considering of The Error

传统的计算行星齿轮并啮合力的方法没有考虑各部件的弹性和误差,因此计算出来的结果与实际有较大误差,影响传动的承载能力。针对上述情况,采用了刚柔混合建模的方法,并考虑各构件的误差及变形,实现模型与实际情况的相符。根据系统参数在PRO/E中建立几何模型,利用无缝接口Mech/pro将模型导入ADAMS,并在ADAMS中进行啮合力仿真,将啮合力与理想情况进行对比,也对啮合力进行了概率分析,得到可信的啮合力的概率密度,为后续的疲劳、寿命分析打下基础,证明了模型的正确性。

The traditional calculation of planetary gear meshing force method does not take into account the flexibility and errors of components, so there is a great differenc between calculated and actual resuhs . To address this situation, this article uses a mixed rigid - flexible modeling method, taking into account the various components of the error and deformation, thus makes the model in accord with the actual situation. According to system parameters, a geometric model is created in PRO/E, and is imported into ADAMS using a seamless interface - Mech/pro. Then the simulation of meshing force is carried out in the ADAMS considering all components of error, and the meshing forces of this simulation and the ideal situation are compared. The meshing force probability density is acquired based on meshing force probability analysis. The method lays a foundation for analysis of fatigue and life for the follow - up.