基于Creo的液力变矩器参数化设计

Creo-Based Parametric Design of a Torque Converter

摘要: 提出了一种液力变矩器参数化设计方法，将整个参数化设计过程集成在Creo三维设计软件中完成，大幅缩短了液力变矩器的改型设计周期。首先应用三段圆弧法完成循环圆的参数化设计，然后分别阐述了泵轮、涡轮和导轮的参数化设计过程，并最终构建了液力变矩器参数化几何模型和流道模型。应用同样的仿真策略对原始模型和参数化设计模型进行三维流场仿真计算，结果表明，参数化设计前后的性能仿真结果几乎完全一致，验证了液力变矩器参数化方法的正确性。该方法实现了液力变矩器的快速改型，为进一步性能优化设计提供了模型基础。

Abstract: A parametric design method of a torque converter was proposed, and the design cycle was greatly shortened by integrating the whole parametric design process into Creo design software. The three-segment arc method was applied first to complete the parametric design of torus, and then the parametric design process of pump, turbine and stator was introduced respectively. In the end, the parametric geometric model and flow channel model of the torque converter were constructed. The three-dimensional flow field of original model and parametric design model were calculated by using the same simulation strategy. The results show that performance calculation results before and after parametric design are almost identical, which verifies the correctness of the parametric design method. The proposed method realizes the quick modification of a torque converter, and provides model basis for further performance optimal design.