液力变矩器叶片流固耦合强度分析

在高功率密度液力变矩器的设计过程中，为解决在泵轮转速大幅提高时带来的叶片强度问题，基于流固耦合分析技术(FSI)，将某型液力变矩器的流场分析与强度分析相结合，提出其一般分析方法和流程，通过计算流体动力学和有限元数值模拟，实现了叶片强度较为准确的预测，确定了叶片的应力分布和变形情况，为高功率密度液力变矩器叶栅系统的工程设计提供了理论依据。

Strength Analysis of Fluid Solid Interaction Field of Hydrodynamic Torque Converter Vanes

In the design process of high power density hydrodynamic torque converter, to resolve vane strength problem brought forward with the wide-range increase of rotating speed of pump wheel, a general method and its process of strength analysis of fluid solid interaction (FSI) field for hydrody?namic torque converter vanes were proposed by FSI technology and combining the flow field analysis of certain type of the vanes with its strength analysis. Accurate prediction of vane strength was realized by computational fluid dynamics and finite element analysis numerical investigation, by which stress distribution and deformation of vanes were determined, and it also provided theoretical foundation for engineering design of cascade system of high power density torque converter.