选择性输出双离合自动变速器行星轮系有限元分析

发布时间：2018-01-11 14:32

本文关键词：选择性输出双离合自动变速器行星轮系有限元分析　出处：《合肥工业大学》2012年硕士论文　论文类型：学位论文

【摘要】：本文以某新型选择性输出双离合自动变速器行星齿轮系设计为研究对象，用有限元分析软件ANSYS对太阳轮与行星齿轮副进行了静态和动态接触分析，然后利用动态接触分析软件ANSYS/LS-DYNA对齿轮副进行动态接触应力的校核。利用大型三维造型软件Pro/E实现了渐开线齿轮的参数化建模。利用Pro/E中的参数化建模模块，在参数输入对话框中输入不同齿轮基本参数后，可在已造型的齿轮模型基础上，，得到不同参数的齿轮模型，有效提高了齿轮建模的效率。利用Pro/E与ANSYS间良好的数据交换接口，将啮合模型导入ANSYS后划分网格生成有限元模型。运用牛顿-拉普森迭代法对太阳轮和行星轮齿轮副的接触应力及弯曲应力进行了静力学求解。在静态分析过程中发现行星齿轮的最大弯曲应力超过了齿轮材料规定的许用弯曲疲劳强度，进行参数优化后的齿轮副符合设计及材料要求，表明有限元法分析接触模型能快速得到模型的应力值。利用多体动力学分析方法，通过定义刚性体和旋转单元，用完全法对齿轮进行了动态接触分析，发现优化后的太阳轮和行星轮齿轮副在动态应力分析下符合齿轮设计要求及齿轮材料要求，从而验证了行星齿轮系中太阳轮和行星轮设计的正确性。
[Abstract]:In this paper, a new selective output dual clutch automatic transmission planetary gear system design as the research object, analysis of the sun gear and planetary gear pair of static and dynamic contact finite element analysis software ANSYS, and then use the dynamic contact analysis software ANSYS/LS-DYNA to check the gear dynamic contact stress.
The parametric modeling of involute gear by using the three-dimensional modeling software Pro/E. By using the parametric modeling module in Pro/E, the input basic parameters of Different Gear Parameters dialog box, can be based on other gear model, gear model by different parameters, improve the efficiency of gear modeling.
The interface of Pro/E and ANSYS between good data exchange with mesh model into ANSYS after the mesh generation of the finite element model. By using the Newton Raphson iterative method, the contact stress of sun gear and planetary gear wheel and the bending stress of the static solution. During the analysis process of the planetary gear maximum bending should be found the gear material force exceeds the specified allowable bending fatigue strength of gear pair with optimized parameters to meet the requirements of the design and materials show that the finite element analysis of contact model can be obtained quickly model the stress value.
By using the method of analyzing the multi body dynamics, through the definition of rigid body and the rotating unit, with the method of the complete gear dynamic contact analysis, found that after the optimization of the sun wheel and planetary wheel gear in the dynamic stress analysis of gear design requirements and meet the requirements of gear materials, which verified the planetary gear train in the sun and planets the wheel design is correct.

【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.46

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